Question

Fungsi F Dinyatakan Dengan Rumus f(x)=ax+b Jika f(3)= -6 dan f(-4) = -41 Tunjukan Rumus Fungsi F (x)

Answer 1

Verified answer

Bab Fungsi
Matematika SMP Kelas VIII

f(x) = ax + b

f (3) =  3a + b =   -6
f(-4) = -4a + b = -41
         --------------------- -
                 7a = 35
                   a = 5

3a + b = -6
3 . 5 + b = -6
b = -6 - 15
b = -21

f(x) = 5x - 21