mohon bantuan nya kk
Jawab:
fungsi linier
1) f(x) = 3x- 5 untuk -2 ≤ x ≤ 3
f(-2) =3(-2) - 5 = - 6 - 5 = -11
f(3) = 3(3) - 5 = 9 - 5 = 4
range y = { y| -11 ≤ y ≤ 4, y ∈ R}
2) f(x) = 3x - 9, untuk 6 ≤ x ≤ 15
f(6) = 3(6) - 9 = 9
f(15) = 3(15) - 9 = 36
range y = { y | 9 ≤ y ≤ 36, y ∈ R}
