Question

f (x) = 4-3x

f (-2) =

f (x-2) =

f (1-a) =

Answer 1

f(x) = -3x+4

f(-2) = -3.(-2)+4 => 6+4 => 10

f(x-2) = -3.(x-2) +4 => -3x+6+4 => -3x+10 => -3x=-10 .(-1) => 3x+10 => x=10/3

f(1-a) = -3.(1-a)+4 => -3 +3a +4 => 3a +1 => 3a=1 => a=1/3