What is the quadratic regression equation that fits these data? X -4 -3 -2 -1 0 1 2 3 4 Y 42 30 20 13 8 13 20 32 54

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) .

Billy plotted −3 4 and −1 4 on a number line to determine that −3 4 is smaller than −1 4 .is he correct? explain why or why not

At your job you're paid $50 per week plus $3 per sale at least how many saled do you need to make in order to have over $250