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f(3) = 3p + q = -10
f(-2) = -2p + q = 0
------------------------------ -
5p = -10
p = -10 / 5 = -2
3p + q = -10
3.(-2) + q = -10
-6 + q = -10
q = -10 + 6 = -4
jadi f(x) = -2x - 4
f(-7) = -2.-7 - 4 = 14 -4 = 10
f(3) = p(3) +q = -10
= 3p +q = -10
f(-2) = p(-2) +q = 0
= -2p +q = 0
3p +q = -10
-2p +q = 0 -
5p = -10
p = -2
3p +q = -10
3(-2) +q = -10
-6 +q = -10
q = -10 +6
q = -4
f(x) = -2x +(-4)
f(-7) = -2(-7) +(-4)
= 14 +(-4)
= 10
Itu jawabannya.