17 multiplied by 48 is 816
For this case we have:
By definition, two points are needed to find the equation of a line. We have a series of points given by:

We chose two points:

By definition, the formula of the slope is given by:

Substituting:


Being a line of the form
, we substitute a point and the slope found to find the cut point b.

Thus, the equation of the line is given by:

Answer:
Option C
Center (0,-3)
radius = 3
answer is D.
The coefficients are -7, 8, -3, 1, and -9