Question

Tentukan nilai fungsi berikut untuk x=-3,-2,-1,0,1,2,3,4,5
a.f(x)=3x+2
b.g(x)=x²+8
please yang bisa jawab dong

Answer 1

A. f(-3) = 3(-3) + 2
= (-9) + 2
= -7
f(-2) = 3(-2) + 2
= (-6) + 2
= -4
f(-1) = 3(-1) + 2
= (-3) + 2
= -1
f(0) = 3(0) + 2
= 0 + 2
= 2
f(1) = 3(1) + 2
= 3 + 2
= 5
f(2) = 3(2) + 2
= 6 + 2
= 8
f(3) = 3(3) + 2
= 9 + 2
= 11
f(4) = 3(4) + 2
= 12 + 2
= 14
f(5) = 3(5) + 2
= 15 + 2
= 17
b. g(-3) = (-3)² + 8
= 9 + 8
= 17
g(-2) = (-2)² + 8
= 4 + 8
= 12
g(-1) = (-1)² + 8
= 1 + 8
= 9
g(0) = (0)² + 8
= 0 + 8
= 8
g(1) = (1)² + 8
= 1 + 8
= 9
g(2) = (2)² + 8
= 4 + 8
= 12
g(3) = (3)² + 8
= 9 + 8
= 17
g(4) = (4)² + 8
= 16 + 8
= 24
g(5) = (5)² + 8
= 25 + 8
= 33