Diketahui fungsi f(x) = 5x + 3. Jika f(p) – 2 dan f( 3 ) = q. maka berapakah nilai p + q
Jawab:
17
Penjelasan dengan langkah-langkah:
f(x) = 5x + 3
f(p) = 5p + 3
– 2 = 5p + 3
– 2 – 3 = 5p
-5 = 5p
p =
p = -1
f(3) = q
q = 5(3) + 3
q = 15 + 3
q = 18
p + q = – 1 + 18
p + q = 17