CPM Homework Help : CCA2 Problem 1-73

Consider circles of different sizes. Create multiple representations of the function ( $x→y$ table, equation, and graph) with inputs that are the radius of the circle and outputs that are its area.

Hint:

How do you find the area of a circle? (If you forgot, try searching for the formula on the Internet.)

Which variable is independent, the radius or the area?

Answer:

$x$	$0$	$1$	$2$	$3$	$4$
$y$	$0$	$\pi$	$4\pi$	$9\pi$	$16\pi$

First quadrant graph, x axis labeled, radius, y axis labeled, area, graph starts at the origin, curving up and to the right.