Question

Dari fungsi f : x =2x- 3,tentukan nilai fungsi f untuk : x = 2, x=-4, x= -3

Answer 1

F(x) = 2x - 3

f(2) = 2(2) - 3
      = 1

f(-4) = 2(-4) -3 
       = -11

f(-3) = 2(-3) - 3
       = -9

Answer 2

F(x)=2x-3
x=2 -> f(2) = 2(2)-3 = 4-3 = 1
x=-4 -> f(-4) = 2(-4)-3= -8-3 = -11
x=-3 -> f(-3) = 2(-3)-3= -6-3 =-9