Triangle XYZ with vertices X(0, 5), Y(15, 10), and Z(10, -5); dilation with a scale factor k = 4/5​ .

Question

I have to do it for a practice test and I wasn't there that day.

Answer 1

Hi, so if we have a scale factor of k = 4/5, then what we do is multiply each of the digits in the coordinates by that factor.

So X (0,5) will become (0, 4) because (4/5)(5) = 4. Y (15,10) will be (12, 8) for the same reason as before. Z (10,-5) will be (8,-4).