SOLUTION: If the circumference C of a circle is a function of its radius r, how do you write the equation in function form and how do you graph it?

SOLUTION: If the circumference C of a circle is a function of its radius r, how do you write the equation in function form and how do you graph it?

Algebra.Com

Question 1013581: If the circumference C of a circle is a function of its radius r, how do you write the equation in function form and how do you graph it?
Answer by fractalier(6550) (Show Source): You can put this solution on YOUR website!
In function form we write
C(r) = 2(pi)r
We would graph it as a straight line with a slope of 2pi and a y-intercept of zero.
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