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6

Set 4: Polynomial Functions (Intermediate)

Explanation

Answer: B

PROBLEM

Add: (5x + 5) + (4x + 3). What is the coefficient of x in the result?

Add: (5x + 5) + (4x + 3). What is the coefficient of x in the result?

A.

11

B.

9

✓ Correct
C.

8

D.

7

Detailed Explanation

Choice B is the best answer. (5x + 5) + (4x + 3) = 9x + 8. Coefficient of x is 9.

Why others are wrong:
A: 11 is incorrect because it does not satisfy the equation.
C: 8 is incorrect because it does not satisfy the equation.
D: 7 is incorrect because it does not satisfy the equation.
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