Question

Diketahui fungsi f : x →4x + 5 pada himpunan bilangan bulat.tentukan nilai dari fungsi berikut.
a f(0) b f(1) c f(-3) d f(-1) e f(5) f f(3)

Answer 1

A. f(0) = 4x + 5
= (4.0)+5
= 0+5 = 5

b. f(1) = (4.1)+5
= 4+5 = 9

c. f(-3) = (4.-3)+5
= -12+5 = -7

d. f(-1) = (4.-1)+5
= -4+5 = 1

e. f(5) = (4.5)+5
= 20+5 = 25

f. f(3) = (4.3)+5
= 12+5 = 17