Final answer:
To find f(x+3) given f(x)=4x+2, substitute (x+3) in place of x in the equation: f(x+3) = 4(x+3) + 2 = 4x + 12 + 2 = 4x + 14.
Step-by-step explanation:
To find f(x+3) given f(x)=4x+2, we substitute (x+3) in place of x in the equation.
f(x+3) = 4(x+3) + 2 = 4x + 12 + 2 = 4x + 14.
Therefore, f(x+3) = 4x + 14.