Question

Write the equation of the circle with center (7,-2) and radius sqrt 61

Answer 1

is this correct? (x-7)²+(y+2)²=√61

Answer 2

This should be the Pythagorean Theorem for a triangle with base -7 and height 2. The hypotenuse is your radius.

Answer 3

what would that equal?

Answer 4

Well its generalized for all x and y. Thats where the x -7 and y + 2 come into play. You have it correct.

Answer 5

great, thanks so much

Answer 6

:)