Question

Di ketahui fungsi f:x --> 4x -1 pada himpunan bilangan bulat tentukan nilai dari !
a.f(3)
b.f(-3)
c.f(5)
d.f(1)
e.f(-2)
f.f(8)

Answer 1

F(x) = 4x - 1
a. f(3) = 4 x 3 - 1 = 12 - 1 = 11
b. f(-3) = 4 x -3 - 1 = -12 - 1 = -13
c. f(5) = 4 x 5 - 1 = 20 - 1 = 19
d. f(1) = 4 x 1 - 1 = 4 - 1 = 3
e. f(-2) = 4 x -2 - 1 = -8 - 1 = -9
f. f(8) = 4 x 8 - 1 = 32 - 1 = 31