Write the vertex form by substituting in values for x, y, h, and k, and then solve for a. Show your work.

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) .

Present age of man is 45 years, 5 years back his age was 4 times age of his son what is present age of his son?

Write as a product: ac^2–ad+c^3–cd–bc^2+bd