1. diketahui fungsi f: x→ 4x - 1 pada himpunan bulat.tentukan nilai dari: a. f(3) b. f(-3) c. f(5) d. f(1) e. f(-2) f.. f(8) yang bisa tolong bantu ya....

f:x→4x-1
a. 4(3)-1=11
b. 4(-3)-1=-13
c. 4(5)-1=19
d. 4(1)-1=3
e. 4(-2)-1=-9
f. 4(8)-1=31
klo ngga salah jwbannya

rumus fungsi:
f(x) = 4x - 1
a) f(3) = 4(3) - 1
f(3) = 12 - 1
f(3) = 11

b) f(-3) = 4(-3) - 1
f(-3) = -12 - 1
f(-3) = -13

c) f(5) = 4(5) - 1
f(5) = 20 - 1
f(5) = 19

d) f(1) = 4(1) - 1
f(1) = 4 - 1
f(1) = 3

e) f(-2) = 4(-2) - 1
f(-2) = -8 - 1
f(-2) = -9

f) f(8) = 4(8) - 1
f(8) = 32 - 1
f(8) = 31