Struggling to Graph with Respect to y? Tips and Tricks for TI-84 Users

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In summary, the conversation discusses a difficulty with graphing a function involving the variable y, and asks for advice or resources on how to do so. It is suggested to view y as the independent variable and f(y) as the dependent variable, and to use a graphing calculator by labeling x as the independent variable and y as the dependent variable.
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lLovePhysics
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Homework Statement


I'm having difficulty graphing with respect to y (unless I graph it point by point).

For example, I find it hard to graph: [tex] f(y)= \frac{y}{\sqrt{16-y^2}}[/tex]


Does anyone know of an easy method to graph such a function or know how to do it on a Ti 84+ SE? Also, it would be great if someone could link me to a website that shows you a method. Thanks!
 
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  • #2
Whenever you graph something, you need to first identify the independant and dependant variables. In this case, y is the independant variable and f(y) is the dependant variable so it is really no different than graphing an equation with x and f(x).

Most graphing calculators will only let you call the independant variable "x" and the dependant variable "y" so this is a time when you just have to be smarter than the calculator.
 
  • #3
Graph [tex]y= f(x)= \frac{x}{\sqrt{16-x^2}}[/tex]
and then turn your calculator on its side!
 

1. What is "graphing with respect to y"?

"Graphing with respect to y" refers to creating a graph or plot of a mathematical equation or function where the dependent variable, y, is plotted on the vertical axis and the independent variable, x, is plotted on the horizontal axis. This allows us to visualize the relationship between the variables and better understand the behavior of the equation or function.

2. How do you graph an equation with respect to y?

To graph an equation with respect to y, you will first need to solve for y in terms of x. Then, choose values for x and use them to calculate corresponding values for y. Plot these points on the graph and connect them with a smooth curve. It can also be helpful to plot additional points to ensure accuracy and to label the axes and give the graph a title.

3. What is the purpose of graphing with respect to y?

Graphing with respect to y allows us to visually represent the relationship between the variables in a mathematical equation or function. This can help us understand the behavior of the equation or function, identify important points such as intercepts and extrema, and make predictions about the data.

4. Can you graph any type of equation with respect to y?

Yes, you can graph any type of equation with respect to y as long as it is in the form of y = f(x), where y is the dependent variable and x is the independent variable. This includes linear equations, quadratic equations, exponential equations, and many more.

5. How does graphing with respect to y differ from graphing with respect to x?

Graphing with respect to y differs from graphing with respect to x in that the dependent variable is plotted on the vertical axis in graphing with respect to y, while the independent variable is plotted on the horizontal axis. In graphing with respect to x, the roles of the variables are reversed. This can result in different visual representations and interpretations of the same equation or function.

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