f(×)=P× + q....f(10)=19.....f(2)=-5 a.tentukanlah nilai p dan q b.rumus fungsi di atas. c.f(8) jwab sekarang

f(x) = px + q
f(10) = 10p + q = 19
f(2) = 2p + q = - 5
----------------------------(-)
8p = 24
p = 3
2p + q = - 5
2(3) + q = - 5
q = - 5 - 6
q = - 11

b) f(x) = 3x - 11

c) f(8) = 3(8) - 11 = 24 - 11 = 13