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h(-2) = a(-2) + b = 11
= -2a + b = 11
h(1) = a(1) + b = 2
= a + b = 2
-2a + b = 11
a + b = 2 Dikurang
-3a = 9
a = -3
-2(-3) + b = 11
6 + b = 11
b = 5
Rumus fungsi h(x) = -3x + 5
h(5) = -3(5) + 5
= -15 + 5
= -10