The function represents the volume of a cylinder that is 10 inches high with

a radius of r. Which is the correct interpretation for the function notation ?
(1 point)
V (r) = 10πr
2
V (3) = 90π
A radius of 3 gives the value 90.
A cylinder of 90π is produced from a radius of 3.
The volume of the cylinder is 90π when the radius is 3.
The volume of the cylinder is 3 when the radius is 90π

1 answer

The correct interpretation of the function notation \( V(3) = 90\pi \) is:

The volume of the cylinder is \( 90\pi \) when the radius is 3.

This correctly reflects the meaning of the function, where \( V(r) \) represents the volume of the cylinder as a function of its radius \( r \). When \( r \) is 3 inches, the volume \( V(3) \) equals \( 90\pi \) cubic inches.