Question

Identify the matrix which represents the coordinates of triangle ABC where A(–9, –6), B(–3, 3), and C(0, –3) after a dilation with a scale factor of 2/3.

Answer 1

@nenadmatematika ?

Answer 2

In essence you are reducing the triangle by a size of 2/3 of it's original value, correct?

Do you recall the identity matrix for a 1 by 2 matrix?

Answer 3

The answers are either 2 by 3 or 3 by 2

As for your first question, it doesn't say anything else about that, so i'm guessing that we are reducing the triangle.