The function f(r) gives the circumference of a circle with radius r. It can be written in equation form as
f (r) = 2πr or f (r) = 2 (3.14) r.
What is f(6)?
To find f(6), we substitute 6 for r in the equation f(r) = 2πr:
f(6) = 2π(6)
Using the approximation 3.14 for π, we have:
f(6) = 2(3.14)(6)
Simplifying, we get:
f(6) = 37.68