1. Given f(x) = x2 – 4x + 4. Solve for: (a) f(3)

(b) f(x + 3)

2. Considering the function given in the previous number, is f(x + 3) the same as

f(x) + f(3)?

3. Given f(x) = +1

2−9

, for what values of x will be the evaluation of function NOT

possible?

4. Choose a real-life scenario where we can apply evaluation of functions and/or

piecewise functions. Explain why do we need the skill in evaluating functions.​