Question

1. if t is rotated 90° what will the coordinates of t be?

Explanation:

Step1: Identify the coordinates of point T

The coordinates of point T are (-1, 1).

Step2: Apply the 90 - degree rotation rule

The rule for a 90 - degree counter - clockwise rotation about the origin is $(x,y)\to(-y,x)$. For point T(-1,1), substituting $x=-1$ and $y = 1$ into the rule, we get $(-1\times1,-1)=(-1, - 1)$.

Answer:

(-1, - 1)