diketahui f(x) =px + q jika f (7/5)=7 dan f =(1/5)=13 tentulan nilai p dan q

F(x) = Px + q

• nilai P

F(7/5) = 7/5p + q = 7
F(1/5) = 1/5p + q = 13
----------------------------- dikurang

=6/5p=-6
------------------- kedua ruas di kali dengan 5

=6p=-30
=p = -30/6

[P = -5]

• Nilai Q

P = -5

F(1/5) = 1/5p+q = 13

= 1/5 x (-5) + q = 13
= (-1) + q = 13

Q = 14

Jadi, P = -5 Q = 14