Question

The triangle formed by points A(1,1) , B(0,0) , C(1,0) is transfromed to the triangle formed by the points A'(3,1), B'(0,0) and C'(1,0),

Describe the transformation and give an appropriate transformation matrix.

Attempted solution:
I think its a shear parallel to the x-axis with a scale factor of 3. I am not really sure how do i find the Matrix (lets call it Matrix X) that transforms Triangle ABC to A'B'C cause i can't find the inverse of the matrix for points ABC as it is not a square matrix... Help please~

Answer 1

@ganeshie8

Answer 2

http://en.wikipedia.org/wiki/Transformation_matrix#Scaling with s_x=3