ILL GIVE BRAINLIEST
What is the domain of this graph?

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) .

Plz hurry evaluate the expression a+b where a=8 and b=19

Evaluate each expression. determine if the final simplified form of the expression is positive or negative -42 (-4)2 42