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h(x) = 2x - m
1 -> 4 ---> h(1) = 4 --> 2(1) - m = 4
2 - m = 4
- m = 4 - 2
- m = 2
m = -2
h(x) = 2x -m --> h(x) = 2x - 2
h(2) = 2(2) - 2 = 4 - 2
h(2) = 2
2) h(x) = mx+ 3
h(-2) = 7 --> m(-2) + 3 = 7
-2m = 7-3 = 4
m = -2
h(x) = -2x + 3
h(2) = -2(2) + 3 = - 4 + 3
h(2) = -1