Question

Square PQRS is transformed as shown on the graph.

Which rule describes the transformation?

R0, 90°
R0, 180°
R0, 270°
R0, 360°

Answer 1

the answer is A i just took the test on ed

Answer 2

R0, 90°

Explanation:

A 90° rotation counterclockwise will map every point (x, y) to (-y, x).

Looking at the pre-image and image points, we have:

P(-3, 5)→P'(-5, 3);

Q(-1, 3)→Q'(-3, -1);

R(-3, 1)→R'(-1, -3); and

S(-5, 3)→S'(-3, -5).

In each mapping, the x- and y-coordinate have been switched and the y-coordinate has been negated. This is the rule for a 90° counterclockwise rotation, so the correct choice is R0, 90°.