Really needing help with this problem

4. find the geometric mean of 4 and 12. 24 8

Find the zeros of the function. write the smaller solution first, and the larger solution second f(x)= (x+6)^2-49

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) .