I have this question about volume of spheres, can you help me out ?

Given:

The diameter of the sphere = 42 cm

To find the volume of the given sphere.

Formula:

The volume of a sphere is given by

The radius is given by

Volume of the sphere:

The volume of the sphere is given by

Simplifying, we get;

Multiplying the terms, we have;

Dividing, we get;

Thus, the volume of the sphere is 38772.7 cubic cm.

i believe it is c.y = 9x

rise over run. 9 units up over 1 unit right or 9/1