Question

Write the equation of the locus if all points in the coordinate plame 10 units from (-6,9)

Answer 1

The locus is (x + 6)^2 + (y - 9)^2 = 100

Explanation:

This is a circle with center (-6,9) and radius 10 units.

The general equation of a circle with center (a, b) and radius r is

(x - a)^2 + (y - b)^2 = r^2 so we insert the given values into this general equation to get the locus.