A circle with center c(4,-2) contains the point D(8,1). what is the equation of the line perpendicular to the radius of the circle passing through point c?

Mary beth used the mapping rule to find the coordinates of a point that had been rotated 90° counterclockwise around the origin. examine the steps to determine whether she made an error. m (3, –6) is rotated 90° counterclockwise. (x, y) → (–y, x) 1. switch the x- and y-coordinates: (6, –3) 2. multiply the new x-coordinate by –1: (6(–1), –3) 3. simplify: (–6, –3) .

Ten times the square of a non-zero number is eqaul to ninety times the number

What is x and y intercepts for y=x+7