Question

Tolong jawab no 1 ya

Answer 1

F(x) = ax + b
f(4) = 4a + b = 2
f(-8) = -8a + b = -7
-------------------------(-)
12a = 9
a = 9 / 12
a = ¾
4a + b = 2
4 . ¾ + b = 2
3 + b = 2
b = 2 - 3 = -1
f(x) = ax + b
f(x) = ¾x - 1 (C)