Question

If the relation y = (1/2)x + 5 has the range {4, 6, 9}, then what is the corresponding domain?


A. {-2, 2, 8}

B. {-2, 2, 13}

C. {3, 7, 13}

D. {-7, -3, 3}

Answer 1

4=(1/2)x+5
x=-2
6=(1/2)x+5
x=2
9=(1/2)x+5
x=8

answer: a