Question

Graph the image of △STU after a rotation 90° counterclockwise around the origin.

Answer 1

Step 1:

Write the coordinates of the vertices of the original image.

T(-4, 0) , U(-9, -9) , S(-4, -8)

Step 2:

When rotating a point 90 degrees counterclockwise about the origin our point A(x,y) becomes A'(-y,x). In other words, switch x and y and make y negative.

Step 3

Coordinate of the image

T'(0, -4) , U'(9, -9) , S'(8, -4)

Final answer

T'(0, -4) , U'(9, -9) , S'(8, -4)