4

Set 4: Linear Functions (Intermediate)

Explanation

Answer: A

PROBLEM

If f(x) = x + 3 and g(x) = 2x - 1, find f(2) + g(2).

If f(x) = x + 3 and g(x) = 2x - 1, find f(2) + g(2).

A.

8

✓ Correct
B.

10

C.

7

D.

6

Detailed Explanation

Choice A is the best answer. f(2) = 5, g(2) = 3. 5 + 3 = 8

Why others are wrong:
B: 10 is incorrect because it does not satisfy the equation.
C: 7 is incorrect because it does not satisfy the equation.
D: 6 is incorrect because it does not satisfy the equation.