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) .

M (3, –6) is rotated 90° counterclockwise. (x, y) → (–y, x)

1. Switch the x- and y-coordinates: (-6, 3) <-- there was a mistake.

2. Multiply the new x-coordinate by –1: (-6*(-1), 3)

3. Simplify: (6, 3).

answer: 177/8

step-by-step explanation:

hello from mrbilldoesmath!

answer:

the domain is the set { -2, 0, 2, 3}

discussion:

the domain is the set of x values in the ordered pairs (x,y). taking the x, or first component, of each ordered pair gives   -2, 0, 2, 3.

you,

mrb