A linear transformation T : R2 → R2 is called a dilation if T(x) = rx for r > 1. (It is called a contraction if 0 < r < 1.) (a) Find the matrix A such that T(x) = Ax. A = 1 0 0 1 Incorrect: Your answer is incorrect. (b) Let r = 3, and then sketch the graphs of u = 5 −1 and T(u).

5× 1/2 = ? a) more than 5 because you are multiplying by a whole number b) 5/10 because you multiply the numerator and denominator by 5 c) less than 5 because you are multiplying by a number that is more than 1 d) less than 5 because you are multiplying by a number that is less than 1

Solve for x and y a x= 13.3 y= 16.7 b x= 23.3 y= 12.5 c x= 7.5 y= 16.7 d x=7.5 y= 12.5

What would the rule be for the reflection of y=-3