Question

Fungsi h dinyatakan dengan h(x)=px+q.jika h(5)=-42 dan h(-2)=7,h(12)=…

Answer 1

-42 = 5p +q
q = -42-5p
7= -2p +q
q= 7 +2p

q=q
-42-5p = 7+2p
-7p = 49
p = -7
q = 7+2p = 7 + 2.-7 = 7-14=-7
h (12) = -7.12 + -7 = -84 - 7 = -91

Answer 2

H(x) = px + q
h(5) = 5p + q = -42
h(-2) = -2p + q = 7
5p+q=-42
dikurangi
-2p+q=7
7p = -49
p = -7

-2p+q=7
-2(-7) + q = 7
14 + q =7
q = -7

h(12) = 12p + q
= 12(-7) + (-7)
= -84+(-7)
= -91