CPM Homework Help : INT2 Problem 7-55

The point $A(-2, 5)$ is rotated $90^\circ$ counter-clockwise ( $\circlearrowleft$ ) about the origin. What are the coordinates of the image of point $A$ ?

$(2, 5)$

$(5, -2)$

$(2, -5)$

$(-5, -2)$

Hint:

When you rotate counterclockwise $(x, y) → (-y, x)$ .

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