# Triangle XYZ has vertices X(1, –1), Y(3, 4), and Z(5, –1). Nikko rotated the triangle 90° counterclockwise about the origin. Wha

t is the correct set of image points for triangle X’Y’Z’?

2 answers:

**Answer:**

The correct answer is A. X’(1, 1), Y’(-4, 3), Z’(1, 5)

**Step-by-step explanation:**

When a figure is rotated counterclockwise about the origin, its original coordinates of point P (x,y) will now be positioned as P' (-y,x).

X (1,-1) --> X' (1,1)

Y (3,4) --> Y' (-4,3)

Z (5,-1) --> Z' (1,5)

The correct set of image points for triangle X'Y'Z' is X'(1,1), Y'(-4,3), and Z'(1,5).

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