Multiple Choice. Please solve each problem and choose the BEST answer.

1) Let f be the function given by the rule f(x) = 5 - 4x. Evalute f(3).
A. -2
B. 20
C. 21
D. 19

2) Let f be the function given by the rule g(x) = x^2 - 3. Evaluate g(t + 2).
A. 1
B. t^2 + 1
C. t^2 + 4t + 1
D. None of the Above

3) Let f be the function given by the rule f(x) = 5 - 4x. Evaluate f(y + z).
A. 3 + 4x
B. 5x - 4y + z
C. 3/4x + y
D. None of the Above

4) Let f be the function given by the rule h(x) = 2x + x + 1. Evaluate h(x/2).
A. 0
B. 1/2
C. 2
D. None of the Above.

1. f(3) = 5 - 4(3) = 5 - 12 = -7

2. g(t + 2) = (g + 2)^2 - 3 = g^2 + 4gt + 1

3. f(y + z) = 5 - 4(y + z) = 5 - 4y - 4z
.....None of the above

4. h(x/2) = 2(x/2) + (x/2) + 1 = x + (x/2) + 1
None of the above.