1. identify the matrix transformation of δxyz, which has coordinates x(−2, −2),y(4, 1), and z(0, 6), for a dilation by a factor of 2.5. then identify the correct vertices of the image 2. identify the matrix transformation of δfgh, which has coordinates f(0, −1),g(5, −1), and h(4, 3), for a dilation by a factor of 1/4. then identify the correct vertices of the image

If dilation is about the origin, and there is no translation, rotation, or reflection involved, the matrix of image coordinates is the matrix of original coordinates multiplied by the scalar dilation factor.

1.

2.

dilation scale factor 2: starting with δabc, draw the dilation image of the triangle with a center at the origin and a scale factor of two. notice that every coordinate of the original triangle has been multiplied by the scale factor (x2). dilation with scale factor 2, multiply by 2.