How do I solve this???

you are saying it as if a fact, not a question, but yes, you would be correct? ; )

step-by-step explanation:

answer4 to the second power is 16

and 4 to the third power is 64,

answer:

c) the x-coordinate of the center of the circle increases by 3

step-by-step explanation:

points a and b are equidistant from the desired line, so the line you find by using them will go through point r.

using points other than a and b will give the desired line only if they are equidistant from r. if they are randomly located, the perpendicular line you create will not necessarily go through point r, hence will not be a solution to the problem.