Question

Suatu fungsi didefinisikan dengan rumus f(×)=m× + n. jika f(0)=4 dan f(-1)=1, nilai f(-3) adalah.....

Answer 1

F(0) = m (0) + n = 4 --> 0m + n = 4
f(-1) = m (-1) + n = 1 --> - m + n = 1
__________ -
m = 3

-m + n = 1
-3 + n = 1
n = 1+3
n = 4
f (x) = mx + n ------> 3x + 4
f (-3) = 3 (-3) + 4
= - 9 + 4
= - 5