Diketahui f(x) = px + q, f(-3) = -16 dan f(2) = -1, nilai p – q adalah​

Jawaban:

f(-3)= -3p + q= -16

f(2)= 2p + q = -1

————————- –

-5p = -15

p = 3

2p + q = -1

2 × 3 + q = -1

6 + q = -1

q= -1-6

q = -7

jadi p-q

3 – (-7)= 3+7=10

Penjelasan dengan langkah-langkah:

f(x) = px + q

f(-3) = -16

f(2) = -1

f (-3) : -3p + q = -16

f (2) : 2p + q = -1

————————- _

-5p = -15

p = 3

f (2) : 2p + q = -1

2.3 + q = -1

6 + q = -1

q = -7

jadi p – q = 3 – (-7)

= 10