Tolong yah semuanya dengan caranya
Jawaban:
f(x) = px + q
Jika
f(2) = 11
f(-3) = -19
maka, nilai p – q !?
Jadi,
f(x) = px + q
f(2) = 2p + q = 11
f(-3) = -3p + q = -19
________________ —
5p = 30
p = 30/5
p = 6
substitusi kan p = 6 ke :
2p + q = 11
2(6) + q = 11
12 + q = 11
q = 11 – 12
q = -1
maka, nilai p = 6 dan q = -1
hasil dari :
= p – q
= 6 – (-1)
= 6 + 1
= 7
Jawaban (A). 7