Question

HELP WITH CIRCLES! Find equations for the circle and tangent line: Center of the circle (0,0). Line tangent to circle at (-5,12).

Answer 1

x^2+y^2=13
:)
tangent is xx1+yy1=0

Answer 2

how do you find this? I don't need just the answer, i need to know the steps to solve please

Answer 3

Draw a circle centered at the origin. Plot a point at (-5,12). Draw a radius from the origin to the point. That gives you a right triangle, which turns out to be a Pythagorean triple giving you the radius.

Then:\[x ^{2}+y ^{2}=r ^{2}\]

Answer 4

and (x-x1)^2+(y-y1)^2=r^2:)

Answer 5

so the equation of the circle is x^2+y^2=169?