Graph lines, find intersections. A tricky problem!

Question: The sides AB and AC of a triangle lies on the lines 2x-y=5 and x+3y =13 respectively. Given that C is the point (-2, 5) and that ABC=90°, what are the coordinates of A and B?

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Answered By:

K.J. P.
Statistics teacher

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Written Explanation:

First, graph the two lines to get some sense of what's going on.

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