3. Misalkan fungsi f(x)=1-2x, tentukanlah A. F(x-3) B. F(-x+1) 4. Misalkan fungsi f(x)=-3x+2, tentukanlah A. F(x+2) 5. Misalkan fungsi f(x)=x2-1, tentukanlah A.

3a) f(x) = 1 - 2x
f(x - 3) = 1 - 2(x - 3)
= 1 - 2x + 6
= - 2x - 5

b) f(x) = 1 - 2x
f(-x + 1) = 1 - 2(-x + 1)
= 1 + 2x - 2
= 2x - 1

4a) f(x) = - 3x + 2
f(x + 2) = - 3(x + 2) + 2
= - 3x - 6 + 2
= - 3x - 4

5) f(x) = x² - 1
f(x + 1) = (x + 1)² - 1
= x² + 2x + 1 - 1
= x² + 2x