Diketahui fungsi f(x) = px + 5 jika f(7) = 2, tentukan nilai p

F(x) = px + 5
f(7) = 2
2 = 7p + 5
7p = – 3
p = – 3/7

F(x) = px+5
f(7) = 7p+5 = 2
7p = 2-5
7p = -3
p = -3/7