For the transformation t, write the t^-1. t : (x, y) (5x, 5y ) t^ -1 (x, y) (x - 5, y - 5) (5x - 1, 5y - 1) (1/5x, 1/5y)

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) .

What ia the sum if the first 7 terms of the geometric series

Astudent showed the steps below while solving the inequality |x-4|< 1 by graphing.