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h(3)=px + q
-8 = 3p + q
h(-2)=px + q
2 = -2p + q
-8=3p+q
2= -2p+q
___________ -
-10=5p
p = -2
# p=-2 -----> 2= -2p+q
2= -2.-2 +q
2= 4 + q
q= -6
h(x) = px+q
h(x) = -2x+(-6)
h(x) = -2x-6
h(-5)= -2.-5 - 6
= 10-6
=4
jadi, nilai fungsi h(-5) adalah 4