To answer this question, we need to multiply each coordinate by the factor, in this case, k = 9. Then, we have:
A(3, 3) ---> A'(3*9, 3*9) ---> A' (27, 27)
B(1, -2) ---> B'(1*9, -2*9) ---> B' (9, -18)
C(-1, 1) -
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