Tolong jawab dong…

Diketahui :

– Rumus f(x) = gx + h

– f(9) = 8

– f(5) = 3

Ditanya :

f(6) = ?

Jawab :

cari dulu g nya:

rumus = (P-Q) g + (h-h) = a – b

(9-5) g + (h-h) = 8-3

4g = 5

g = 5-4

g = 1

lalu cari h:

rumus = f(x) = gx + h

f(5) = g(5) + h = 3

= 1(5) + h = 3

= 5h = 3

= h = 3 – 5

= h = -2

f(6) = 1(6) + (-2)

= 6 – 2

= 4

maaf kalau salah