jawab dengan baik no.16,17 pakai rumus

f(x) = px + q
f(1) = - 5                         ...1
f(-2) = -11                       ... 2
f(t) = 3

p + q = - 5
- 2p + q = -11

3p = 6
p = 2

sub p = 2 ke ... 1
2 + q = - 5
q = - 7

Persamannya : 2x - 7
Jika f(t) = 3

2t - 7 = 3
2t = 10
t = 5 ( d. )

h(x) = -4x + 7
h(3k + 5) = ?

Maka,
x = 3k + 5

sub x = 3k + 5
- 4(3k +5) + 7
= - 12k - 20 + 7
= - 12k - 13 ( a. )