Question

Suatu fungsi ditentukan dengan rumus f(x) = ax + b.

jika, f(-2) = 17 dan f(5) = -32, f(12) = .............................................



tolongg,,. jawab plisss makasihh yokkk,,.

Answer 1

-2a + b = 17
5a + b = -32
------------------- —
-7a = 49
a = 49/-7
a = -7

b = -2a + b = 17
= -2.-7 + b = 17
= 14 + b = 17
b= 17 - 14
b = 3

rumus fungsi = -7x + 3

jadi f(12) = -7.12 + 3
-84 + 3
-81