Question

Tolonf dibantuu

Diketahui f(x) = ax + b, f(0) - f(-1) = 3, f(1) - f(0) = 5

Maka nilai a+b =...

( tolong pakai cara )

Answer 1

F(x) = ax + b
f(0) = b
f(-1) = -a + b
f(0) - f(-1) = 3
b - (-a + b)= 3
a = 3
f(1) = a + b
f(1) - f(0) = 5
(a + b) - b = 5
a = 5

mungkin salah satunya b
jadi a + b = 5 + 3 = 8

maaf kalo salah