The circumference C of a circle is a function of its radius given by C ( r ) = 2 π r C ( r ) = 2 π r . a. Express the radius of a circle as a function of its circumference. Make sure you use function notation. b. Evalute the function you found in part a. r ( 64 π ) = r ( 64 π ) = c. Explain the meaning of the equation in part b in a complete sentence

option a.

step-by-step explanation:

if you look closely at the graph, we can notice that the function is not defined at two different points.

if you look at functions b and c, you will notice that both functions are not defined at just one point. the function b is not defined at x= -5/2 and function c is not defined at x=-5. both options are discarded, given that our function should not be defined at two fiferent points.

now, if you look closely at the graph you will notice that the function sketched is not defined at x=5 and x=-2.

ok then what happened.

3

step-by-step explanation:

divide 13.5 by 9 to get the scale factor. it equals 1.5

2 * 1.5 = 3