Question

Diketahui fungsi f(x)=-3x+6
A.tentukan bayangan dari -3dan 2
B.jikaf(a)=-9tentukan Nilai A

Answer 1

F(x) = -3x + 6
a) f(-3) = -3(-3) + 6 = 15
f(2) = -3.2 + 6 = 0

b) f(a) = -3a + 6
-9 = -3a + 6
3a = 6 + 9
3a = 15
a = 5