Graphs Definition and 625 Threads

Homework Statement The graphs y=abs(x) and y=(x^2)-6 intersect at x=3 and x= -3 What is confusing me is when I set them equal to each other and solve (x^2)-x-6=0 and (x^2)+x-6=0 I get -3,+3,-2,+2 What is the deal with the negative 2 and pos 2? Homework Equations The...

Hi, I have a sensor going into a microcontroller via a adc. I have worked out the conversion from the adc value into real terms. Now the math takes too long in code to run this. and a look up table with 1024 elements will fill my program memory very quickly. So I have put the results...

mathematica not supporting graphs,,,code is as Dear Fellow I was trying to make graph using mathematica but because of imaginary appearing mathematica is not supporting don't now how to evaluate the graph,,where code for mathematica is as rho = 1.74*10^(3); lambda = 9.4*10^(11); mue =...

Hey! You seem to kn ow what youre talking about here and I am stuck on a similar question, so is it ok if i ask you something? Basically I found your tips on things that you need to include when solving the question really helpful, and I was wondering, should you sketch graphs of specific volume...

My first post, yay i already like the atmosphere here :P anyway... Using the formula F = kQq/R2 sketch graphs between a. F and Q (k,q, and R are constant) b. F and R (Q,q and k are constant) c. Q and R (k,q and F are constant) I think i did it correctly but I'm not quite sure...

Confused in graphs? Homework Statement My teacher gave a question in which he have to find the number of solutions:- 10sin(x)=x I solved it using the graphs and i got the number of solutions to be 4. But when i came back home and tried to do it on Microsoft Mathematics, i found the results...

Homework Statement Sketch the graphs of the following function showing vertical and horizontal asymptotes and relative extrema: f(x) = (x2-1)/(x2-4) Homework Equations Limits, zeroes, derivatives The Attempt at a Solution I know that I have the majority of the answers right, the...

Hi, Can someone please suggest me some books on graphs of Motion? Thanks! :smile:

e.g. I want to find y when x is at pi/2 for the graph y=cos pi x. Why does pi/2 have to be expressed as a 'normal' (for want of better word) number (3.14/2) and not as 90 degrees (180/2) like you would for a graph without a pi in it e.g. cos x For cos x, if x is at pi/2, then I just put in...

In Peskin and Schroder Book QFT: They used the term: "amputated connected graphs". Does amputated connected graph in Peskins's book is same as the irreducible graph in common sense? I think it is the same, please reply. thank you all!

i just want to double check this is right because i am not given answers. i have a wave traveling at 5cm/s traveling in the positive x direction. when t=0 it has intercepts at 1cm and 4cm. if i have to draw the graph at t=2 will the graph look exactly the same except the intercepts are at...

i have an acceleration time graph and need to create a velocity time graph. i know to get the velocity you take the area under the acceleration graph but i don't understand how you get the lines. eg. a speed boat accelerates at 2m/s^2 for 7.0 seconds. on the acceleration time graph i...

Does anyone know which program writers and publishers use to create graphs in textbooks (see attachement for example)? I'm trying to create a basic 3D graph like the one in the attachment, but can't seem to figure it out. To give you an idea, I'm trying to begin by graphing simple circles in a...

Homework Statement Since the exercise has a graph I uploded it here :http://imageshack.us/photo/my-images/833/img9845wz.jpg/ fmax(t)=1 T=2Pi h=1,3,5,7,... Also I was told that I could use Eulers formula here. Homework Equations maybe someone could give me some tips how to make the...

[PLAIN]http://img863.imageshack.us/img863/9868/heaviside.png

Hi, I have a graph of a function, but it has no specific equation, just a drawing, denoted by f(x). The question asks me to do the 1/f(x) of that graph. What does that mean? Thanks in advance.

Find the values of a and k if the graph with equation f(x) = ae-kx passes through the points (1, e) and (-1,2e) So, from the information above I managed to derive two equations to solve simultaneously: ae-k = e aek = 2e I am pretty sure those are correct, but I am not 100%. I just...

Homework Statement I have this Physics coursework, where I have been investigating how the resonant frequency of wood changes as I increase the length of the wood and the width, by using increasingly long and increasingly wide panels of thin MDF. What I would expect to see would be a decrease...

Hello, I don't know if I'm posting this in the right section because I need help with reading EKG graphs (and I've never had any experience with them), but I'm doing this for my physics lab class. I attached the graph I need help with. So basically, one period on the graph means one...

The function of f is given by f(x) = 3x - 2, where x is part of a set of real numbers. Sketch the graph of f. Find a combination of geometrical transformations of which, when applied to the graph of f will give the graph of g(x) = 6x + 1 At a first glance I thought: Stretch by a scale factor...

After collecting data from an experiment and realizing that there is a power relationship, how do u know if u need to use semi log graph paper or log-log paper to graph your data?

Homework Statement Hello everyone, I am trying to determine the the threshold function p=p(n) for a random bipartite graph (see http://en.wikipedia.org/wiki/Erd%C5%91s%E2%80%93R%C3%A9nyi_model for a 'random graph': I am interested in the same idea, but for random bipartite graphs), such that...

Hi Well, I know that in some few special cases It is easy to prove that 2 graphs can not be isomorphic. for example if they gave us two graphs that one of them were bipartite and the other were not, we can state that if the 2 graphs were isomorphic, then they would've had same mathematical...

1. This is problem 2.10 from the book "Calculus of Several Variables by C.H Edwards": Let the mapping F: R2->R2 be defined by F(x1 , x2) = (sin(x1 - x2), cos(x1 + x2)). Find the linear equations of the tangent plane in R4 to the graph of F at the point (PI/4, PI/4, 0 , 0 ) The attempt...

Homework Statement Hello, I want to make sure that I graphed the directed graphs in my homework correctly. The problems and my work is located in the attachment. I also uploaded the directed graphs onto this link: http://img857.imageshack.us/f/83289329.png/" Homework Equations NoneThe Attempt...

Couldnt we just use whole numbers to graph on the x-axis instead of labeling them pi/2, pi, 3pi/2 ? Because it gets confusing having to memorize which pi fraction goes in order. Is there a better way to memorize these? Thanks

how to define a V-sentence phi such that phi has aebitrarily large finite models and for any finite model G , G is a connected graph. after that to find a connected graph that does not model the sentence phi. please explain it to me.

http://www.bluemelon.com/missj/myfirstalbum#photo-1201004/T800600 So that ^ is the acceleration vs time graph that I'm working with...I have to fill in Velocity vs Time and Position vs Time Tables...and then draw graphs based on both tables...Can someone please make sure that I've gotten the...

When the motor is producing its top speed, and there is no torque, I cannot picture what this means. I understand that low speeds = high torques, as I can picture an object moving slowly because of its torque. I undersrtand torque as the force that creates rotation, so if a shaft is rotating...

For the Scan attachment: The question asks me to find the maximum acceleration. I used those two points in red in the attachment to calculate the gradient doing difference in y and difference in x. I got 4m/s ^2: does it seems correct, or I should have to tangent it? Because it seemed to be a...

Basically, we have two functions. P1 and P2. P1 Kicks in at t=0 and runs for a few seconds (a trig function). Then P2 starts, it's and exponential decay. Below is what I'm trying to do. I've tried to create time matrix and even ode solver. I need a way of plotting both functions on a...

Homework Statement I am doing a lab report in which I am supposed to plot 2 graphs from which to approximate g. One is Delta X vs t and one is delta X vs t^2. The data represents the time it takes for an object to travel a certain distance interval (in my case a cart going down an inclined...

Homework Statement I was given this worksheet today: http://www.mrwaynesclass.com/impulse/WS/momentum.pdf However, I was not in school today nor when we started momentum. So I'm a little confused with the graphs. On a force versus time graph, how do you go about solving for velocity? An...

Homework Statement Say y = x^3 Then: y' = 3x^2 y'' = 6x My question is... Let's say I graphed y y' and y''. Do these graphs give us any info about the anti derived graph? For instance just by looking at the y' graph can I gather up any info for y graph?

Hi, ive created several graphs in different emacs files. I now want to superimpose them using code in a different emacs file. This is what i have done: //get the input files TFile * inputfile = new TFile("p60.root","READ"); TFile * inputfile2 = new TFile("p20.root","READ")...

Homework Statement Explain how the parabola that is the graph of f can be obtained from the graph of y=x2 Homework Equations f(x)=-1/3(x-2)2+3 The Attempt at a Solution a y-scaling with factor -1/3 a horizontal translation by 2 units to the right a vertical translation by 3...

Homework Statement Nine students A, B,..., I serve as members on eight committees, as follows. Committee 1: A, B, C, D Committee 2: A, C, D, E Committee 3: B, D, F, G Committee 4: C, F, G, H Committee 5: A, H Committee 6: H, I Committee 7: G, H Committee 8: E, I Each committee is to meet...

Homework Statement What is the relationship with a function's rising, falling, high point or low point to it's derivative? The Attempt at a Solution I have plotted my graphs, I can see that they intersect at the high and low points. But what is the relationship Also on another...

I know what a force-extension graph looks like. DOes a force-compression graph look the same just with different axis? (compression on the x-axis NOT extension) DOes a compressive-strain graph (Young Modulus) look the same as a tensile stress-strain graph? if not what do they look like...

hey, I am not too great at physics, and i know this is going to seem like a relatively elementary question. when in class we learned about graphs, i never fully grasped the concepts of v(t), v(x), and v(a) graphs, such as how they all correlate to each other, and forming them. I am worried that...

Homework Statement if the graph pf y=h(x) always lies between the graphs of y=x^3 and Y=x^1/3 for what real numbers a can you determine the value of limH(x)x->a? explain and find the limit for each of these values of a Homework Equations The Attempt at a Solutioni can draw two...

[b]1. Prove that a graph with n vertices that has no triangles has at most (n^2)/4 edges. [b]2. [b]3. Um so i was thinking maybe you start off with a complete graph and then keep deleting edges so as to remove the triangles within it or something? Or maybe by induction?

Homework Statement Compare the functions \; f(x)=x^{7} \; and \; g(x) = 7^{x} \; by graphing both functions. A) find all points of intersection (there is suppose to be 2) B) Which graph grows larger I need help with A Homework Equations The Attempt at a Solution...

Trajectory Graphs?? Homework Statement The trouble I'm having is with determining what information I can get from a trajectory graph and how that information differs from what I can find on a position vs. time graph. Is the acceleration I find just the rate of change in the direction of...

So it is my understanding from my book that the information that we can get from a trajectory graph is the direction of velocity, but not the magnitude of velocity. If the tangent line to a point on a trajectory graph just gives the direction of velocity, why can the trajectory graph still be...

Hey guys, I am trying to plot some graphs to use in LaTeX. In gnuplot, I run the command set term epslatex set output "graph.tex" plot ... However, my graph is blank. The axis and grid are there but text and curves are missing. If I set the terminal to aquaterm or X11, they look perfet...

Homework Statement I have to do a lab report on centripetal force, frequency and radius. My question is, does a graph have to show the (0,0) points? Also, I got an equation out of the graphing software for one of the graphs and it was y = 1.51x^0.4233, is it okay to use this equation or y =...

Homework Statement In each case, draw a set of graphs for the vertical and horizontal components of motion. Also draw a motion map of the vertical and horizontal components of motion. A projectile is launched with a speed of 30 m/s at an angle of 30 degrees. At a point which is ½ the way down...

Homework Statement The question asks me to explain why the graphs should be a straight line? We had to make a Distance vs Time^2 graphs. The Attempt at a Solution On a position x time graph If the ball is falling only way it can be a straight line if the velocity is constant , right? I...

Hi, I didn't know where graph theory falls into, so I decided to post this question on here; please let me know if there is another thread where this post is more appropriate. I am working on The Princeton Review's "Cracking the GRE Math Subject Test", and there was one problem about graph...