What is Graphing: Definition and 495 Discussions

A graphing calculator (also graphics calculator or graphic display calculator) is a handheld computer that is capable of plotting graphs, solving simultaneous equations, and performing other tasks with variables. Most popular graphing calculators are also programmable and therefore considered to be programmable calculators, allowing the user to create customized programs, typically for scientific, engineering and education applications. Because they have large displays in comparison to standard four-operation handheld calculators, graphing calculators also typically display several lines of text and calculations at the same time.

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  1. H

    Graphing a parabola for a calculus problem

    I am graphing a parabola for a calculus problem. I understand how you factor and use the two x values as your x-intercepts, but I'm not sure how this one would be graphed. y=4x^2 - 25. I understand how the vertex of the parabola would be at negative 25, but I have no clue what to do woith...
  2. H

    Free Graphing Software for Polar Coordinates & Irreducable Functions

    Hi, I'm currently doing some work with black holes and I need a powerful graphing tool. Are there any free, downloadable graphing programs that can graph polar coordinates without having to make r(t) = ...? I have some irreducable functions I need to view. Thanks!
  3. H

    Free Downloadable Graphing Software for Polar Coordinates

    Hi, I'm currently doing some work with black holes and I need a powerful graphing tool. Are there any free, downloadable graphing programs that can graph polar coordinates without having to make r(t) = ...? I have some irreducable functions I need to view. Thanks!
  4. T

    Graphing force and acceleration

    Hey, I'm new to these forums (duh! :biggrin:) and need some help; we have a physics portfolio containing 10 questions of varying difficulties. I'm having some troubles with some of the questions and wouldn't mind some help to guide me in the correct direction! So I'd be grateful if anyone aids...
  5. Artermis

    Calculators Which Graphing Calculator to buy?

    I'm sorry if this topic appears to be in the wrong section, I was not sure what this would go under... if a moderator would be so kind as to move it to the correct sub-forum, I would be glad =) I'm going into Grade 12 this year, and will need a graphing calculator obviously not only for next...
  6. T

    Graphing Function in Excel & AutoCAD

    I'm trying to sketch a graph from a function of x on my computer. I suppose I can probably get this done in MS Excel, but I would then like to get this graph into AutoCAD since I don't know of any way to graph a function directly there. Is this possible at all...? I'm not sure how to get this...
  7. D

    How Can I Correctly Graph the Trigonometric Function f(x) = 2cos(3x+pi/2) -1?

    i have a problem graphing trig functions such as f(x) = 2cos(3x+pi/2) -1 i know this should be very simple but i am missing something :frown: can someone explain the way youd go about graphing this amp= 2 period = 2pi/3 y trans = -1 x trans = (pi/2)/3 [right?] so when i try...
  8. L

    Graphing Calc Help: Typing cos^2 x = 2

    how do u type cos^2 x = 2 into a graphing calc because when ever use push cos it puts the ( so u can't a ^2 before it.
  9. M

    Studying graphing method.

    I am preparing to study for my exam, and there is something I am not sure about when evaluating the limit x --> Infinity of 4/x^2 - x Intuitively the function seems to go to minus infinity, and I wonder if that is a sufficient answer or am I overlooking a rigorous method that should be applied...
  10. J

    Graph Functions: Features & Uses

    hey below i have listed what i believe the features of the graph can someone please look over my answer...thanks in advance...image attached below...
  11. P

    What is the angle between the planes VBHD and ABDEFGH?

    1.In the figure, describe the motion of particles X and Y at the instant. What will be the shape of the string after 1/4 cycle? I don't know which direction that the crests are traveling as there are two sources. 2.The tetrahedron BCDH is cut off from the cube and is then placed on top of the...
  12. M

    Quick help with graphing something on the TI

    ok so the point of this was to solve the problems using one of three methods: Directions for problems #13-26: Use your calculator to estimate the solution accurate to 2 decimal places. Try one of the following methods: 1) guess and check on the homescreen (LONG AND TEDIUS! forget this way...
  13. S

    Trouble graphing and working out functions

    Hi everyone. Im on a bit of a time crunch, so all advice ASAP would be greatly appreciated. Im usually quite good at maths, am In High School, and we are doing functions. In particular, I am having trouble graphing and working out functions like the following type: Eg Graph the following, y...
  14. A

    TI-83 Troubleshooting: Graphing Polar Equations in Degrees & Radians

    Anyone know enough about TI-83s to help me out? For some reason whenever I try to graph a polar equation on mine it gives me what the graph should look like for radians when degrees is the mode of choice and vice versa. For example, if I were to graph sin(theta) I get a nice pretty circle when...
  15. G

    How do u graph these without using a graphing calculator?

    How do u graph these without using a graphing calculator? a) f(x)=3sin2x b) f(x)=1+cosx
  16. J

    How Do I Analyze and Graph the Function \( \frac{x}{x^2-4} \)?

    Sketch the graph of the function, using the curve-sketching guide. Function: \frac {x}{x^2-4} So far I have derived this information from the function: (Please check!) Domain: (-\infty,-2)\cup(-2,2)\cup(2,\infty) y-int: (0,0) x-int: (0,0) Asymptote: x=-2 , x=2 First Derivative...
  17. R

    Graphing f(x)=2^2+9/5x^2+2: Imaginary #s

    i need to graph f(x)=2^2+9/5x^2+2 the vertical asym. would be the i squareroot10/2 ? if that is correct how do i graph an imaginary #
  18. D

    Graphing Trigonometric Functions Question

    Ok I can graph sin(x) , cos(x) , and tan(x) pretty easily, but I'm having a hard time graphing the csc, sec, and cot ones. For the first three I just found the values of pi/2 pi 3pi/2 and 2pi. So for example pi/2 for sin(x) would be sin 90 or sin pi/2 which is equal to 1. I then just put a...
  19. N

    How can I graph the pendulum function without knowing the constants?

    Hello, Ive done the first part of a question which was to derive the equation \displaystyle{\theta(t) = \theta_0 \sin(\omega_0t + \phi)} for a pendulum where \displaystyle{\omega_0 = \sqrt{\frac{g}{r}}} and \displaystyle{\phi = \sin^{-1} \left(\frac{\theta_1}{\theta_0}\right)} r =...
  20. C

    Graphing Increase/Decrease Intervals of a Function

    once you find the intervals of Increase/Decrease in a function how do u graph that??
  21. J

    Graphing Program for fn's of 2 variables.

    Hi, Does anyone know a free website where you can create a computer image of a function of two variables? Thanx in advance!
  22. N

    Is it Time to Ditch Graphing Calculators?

    I have both the TI-89 and the TI-92 graphing calculators. I like them just fine but I can't figure out how to abort a plot. There doesn't seem to be any mention of how to do this in the manual. Once a plot is started there doesn't seem to be any way to stop a plot until it has been...
  23. A

    Graphing calculator find an eqn?

    Find Equation On Graphing Calc Plz Help! I know how to graph the inverse on the t1 83 graphing calculator u press 2nd prog 8 y vars enter but Is there a way to find the eqn of the inverse after its graphed? HELP SOMEONE PLEASE THIS COULD MAKE MY LIFE SOOOO EASY PLZ PLZ PLZ HELP ME! :cry...
  24. A

    Graphing calculator Absolute values? HOW?

    Does anyone know how to put absolute values in the t1-83 graphing calculator? I need to graph absolute value of x, the absolute value of x +2, and the absolute value of x-3
  25. I

    Good Graphing Program for Semi-Logarithmic Functions

    Anyone know of a good graphing program for semi-logarithmic functions that easily downloadable.
  26. J

    Solve Math Graphing Problems: Finding X-Intercepts and Local Extremes

    Hey.. I am having problems finding the x-intercepts and the maximum and minimi points using my calculator.. the question is as follows: Graph each function. IDentify the x-intercepts and the pointsw here the local maximums and local minimums occur. F(x) = x^4-4x^3-x^2+12x-2 on my ti 83...
  27. R

    Math Help:Reciprocal & Graphing

    What would be the reciprocal of the following: A)y=x^2 B)y=\sqrt{x} I think the reciprocal for A, it would be: y=\frac{1}{x^2} And B would be: y=\sqrt{\frac{1}{x}} And also, How would I graph this? I just need the table of values. Well, I need to do domain,range,graphing...
  28. T

    How Do You Graph and Calculate the Area of a Region Defined by Two Inequalities?

    "Graph the region defined by the inequalities x^2 + y^2 - 2x + 4y -5 <= 0 and x + y - 1 >= 0. Determine the area of the region defined bythe graph." I'm confused about the graphing part, I have no idea where to begin.
  29. N

    How can I graph an implicit equation on my TI-89/92 calculator?

    I have a TI graphing calculator and I'd like to graph the following equation,... x^3+y^3-3xy = 0 I'm not sure how to graph this on my TI I took the derivative of the above with respect to x,... 3x^2+3y^2\frac {dy}{dx}-3x\frac{dy}{dx}-3y=0 Which I solved as...
  30. H

    [unusual problem]making an illustration on graphing calculator

    hello, I'm new! well anyways, I'm having trouble with this assignment. the assignment is to, on my TI-83 plus graphing calculator, create an illustration as a graph. it doesn't have to be much, it could be a person, or a flower, pretty much anything. the thing is, I'm not too good at...
  31. iamhumble

    Graphing mean, absolute uncertainity, etc

    Hi -- This is a little off topic but I will still ask anyways. I did a lab for physics where I had to calculate the following values from data which I capture: - mean - deviation of each value from the mean - mean of the deviations - standard deviation - standard deviation of the mean...
  32. A

    Simple graphing that will take a second

    I'm supposed to graph y=1/(x+3)(x=1) how do i do it?
  33. 4

    Graph f(x)=(1/8)x^3: Explanation & Sketch

    f(x)=(1/8)x^3 I think because the 1/8 is less than 1, therefore it's wider, but if it's greater than 1, it's narrower right? I tried to graph it, but looks like mine was way to wide, and not matching what the answer book had... Can someone explain and sketch it for me? Thanks!
  34. A

    Graphing x=y-y^2: A Guide to Understanding and Visualizing the Equation

    graph this please? How do I graph x=y-y^2? what would it look like? my calc is extremely rusty so if you can help me out, that'd be great. Thanks!
  35. S

    Graphing linear functions

    How exactly do you do this, graphing linear functions? f(x) = x + 3? Can someone explain how to do it.
  36. D

    Graphing Calculators Under $100 for Math Students at School

    My school, for some reason, requires it's math students to own Graphing Calculators. I've been to an office supply store and most of them are at least $100 (Texas Intruments). Although I saw a Casio for just $50. I'm not sure why it's so much cheaper, but that's my main choice right now...
  37. S

    ElementaryFunctions/Exp/06/GraphingOnTheComplexPlane

    During a conversation I had yesterday, a math professor I occasionally meet with mentioned in passing, "and you might want to try to graph f(z)=e^z on the complex plane...hm...yes...anyway..." (where "z" is complex). So I sat down at Taco Bell yesterday to think about it, and, for a few minutes...
  38. C

    Freeware for graphing (3D) spherical coordinates?

    Do you know of any freeware available for graphing (3D) spherical coordinates -- like Maple (only freeware)?
  39. P

    Graphing Linear Equations: Finding Intercepts

    How would I go about graphic this? y = 3x - 2
  40. D

    Graphing y = x + sin[x] - Get Help Now!

    HI, please lend me some hints on how to graph the following equation in terms of y. x = y + sin[y] I know to plot it in terms of y, i should simply switch the places of y's and x's: y = x + sin[x] but i don't know how it looks like on the graph. Any idea how? Appreciate it!
  41. A

    Graphing Slope Fields: A Calculator-Free Guide

    I'm still having trouble with figuring out slope fields. If I have a function dy/dt= f(t,y), how would I go about graphing the slope field for my solutions without the use of a calculator. An example would be how would I graph the slope field of dy/dt = t^2-t and dy/dt = y^2? Thanks.
  42. D

    Graphing Calculator for Windows PC | Free Download

    could someone give me the link for a good graphing calculator that I can use on my pc (windows)?
  43. A

    Graphing the derivative of a graph

    one of my calc assignments asks me to graph the derivative of a graph which can be seen here: http://www.eden.rutgers.edu/~cjjacob/images/fifth.jpg i already know that when there's a cusp on the graph, the derivative of that point is at zero and that slope determines how the derivative acts...
  44. M

    Trigonometric Functions Graphing

    Ok I have hit a little bumb in the road on my trigonometric function learning. Ok i need to graph the function y=3cos2(x-120degrees)-3, for x is less than or equal to 360degrees but is greater than or equal to -360degrees. Ok so i know the: verticle translation is 3 down the phase shift is...
  45. D

    Graphing k(x) = log3 (x+9): Steps to Solve

    I need some help please. I'm not that good at sketching graphs out. Here's the problem. k(x) = log3 (x+9) (the number three is the base) What steps do I have to do in order to graph this problem? Thank you.
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