suatu fungsi g(x) = px+q jika g (-2)=-3 dan g (3) = 7 maka nilai p dan q adalah

g(-2) = p(-2)+q = -3
g(3) = p(3)+q = 7

eliminasi
-2p + q = -3
3p + q = 7
----------------- –
-5p = -10
p = -10/-5 = 2

-2p+q = -3
-2(2)+q = -3
-4+q = -3
q = -3+4 = 1

p = 2 dan q = 1