Question

You rotate triangle ABC, with vertices A(-3, 1), B(-2, 2), and C(-3, 4), 90° counterclockwise about the origin to form triangle A′B′C′. Match each vertex of triangle A′B′C′ to its coordinates

Answer 1

Step-by-step explanation:

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Answer 2

Answer:

-1

Step-by-step explanation:

A= -3 + 1 = -2

B= -2 + 2 = 0

C= -3 + 4 = 1

A+B+C= -2 + 1 = -1