Prove that the triangle with vertices P(-4,0), Q(3,5), and R(8,-2) is a right triangle.

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step-by-step explanation:

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step-by-step explanation:

look at the picture.

y-intercept for the function on a picture is 4 → point (0, 4).

y-intercept for the function

is for x = 0. substitute:

y-intercept is 8 → point (0, 8).