A linear transformation is a matrix is a linear transformation. Take your vertices as vectors in the plane and multiply them on the left by the transformation matrix to see where the map takes them.
This question is impossible, plz help.
Transform the square ABCD with vertices A(0,0), B(1,0), C(1,1) and D(0,1) under the linear transformation L= [1 2] . Graph the original and the image.
[-1 1] The [-1 1] is in the same box as the [1 2], like a 2x2 matrix.