Question

Write a rule to describe each transformation

J(-2,-1), K(-2,2), L(3,0)
to
J'(-3,-1.5), K'(-3,3), L'(4.5,0)

Answer 1

(x, y) → (1.5x, 1.5y)

Explanation:

Each of the image coordinates is 1.5 times the corresponding pre-image coordinate. The transformation is a dilation by a factor of 1.5 about the origin.

Some authors use a notation like D(1.5,O) to indicate the transformation. I like the one shown above, or ...

(x, y) → 1.5(x, y)