The photograph above shows Garfield sitting down with his napkin. Isn't he cute? Your job is to find a function y = f(x) describing the curve formed by Garfield's left ear. As part of describing the function f(x) you will need to specify its domain -- that is, the lowest and highest values of the variable x. If you get a good answer, try the bottom of his napkin if you want.
You can click on the photograph above to find the coordinates of the point at which you clicked. You can fine tune the selected point by clicking at the arrows at the four sides of the photograph. Each click on an arrow moves the cursors one pixel in the direction indicated by the arrow.
You can check your answer. You must enter three items in the form below to describe the curve formed by the cat's left ear. The first two items give the lowest and highest values of the function's domain and, thus, the part of the photograph above containing the curve formed by the left ear. The third item is an algebraic expression -- like - 4.836099*10^-6*x^4 + .0034785413*x^3 - .94207019*x^2 + 114.0970717*x - 5031.130977, for example -- that defines the function f(x) that describes the shape of the curve.
After you have entered the three items in the form below, click the "Try it!!" button to see the curve superimposed on the photograph. See if you can get a better equation than I did.