Question

Help!!! 10pts!!

Answer 1

It's a bit of a bummer to have to work through all of these to find the answer. That a lot of slope calculations (or graphing, or whatever). When there are this many, a spreadsheet or other machine help can make it easier.

The correct choice is the last one, XYZ, with vertex X being where the right angle is located.

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Slope of XY is 4/7; slope of XZ is -7/4. The product of these is -1, so those segments are at right angles.