Question

Tentukan f(1) dan f(4)
a. f(x) = 3x + 3
b. f(x) = x2 + 5x . 1

Answer 1

A. f(x) = 3x + 3
    f(1) = 3.1 + 3 = 3 + 3 = 6
    f(4) = 3.4 + 3 = 12 + 3 = 15

b . f(x) = x² + 5x . 1
     
maaf,, soal yg b tuu dikali 1 atu dikurangi 1 ???

Answer 2

A) f(1)= 3×1+3
= 3+3
= 6
f(4) = 3×4+3
= 12+3
= 15
b) f(1) = 1×2 + 5×1×1
= 2+5×1
=7
f(4) = 4×2 + 5×4×1
= 8 + 20 ×1
= 28