Given the function f ( x ) = 2 x + 8 , evaluate and simplify the expressions below. See special instructions on how to enter your answers.

Step-by-step explanation:

Given

Required

Solving for f(a)

Substitute a for x in the given parameter

becomes

Solving for f(x+h)

Substitute x + h for x in the given parameter

Open Bracket

Solving for

Substitute 2x + 2h + 8 for f(x + h), 2x + 8 fof f(x)

becomes

Open Bracket

Collect Like Terms

Evaluate the numerator

Hence;

4

step-by-step explanation: