Can someone check number 5. you can scroll down to see it.

Find the solution of system of equation y= x-4 y=4x+2

Factor -8x3-2x2-12x-3 by grouping what is the resulting expression?

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) .