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6

Set 3: Polynomial Functions (Intermediate)

Explanation

Answer: D

PROBLEM

Add: (3x + 5) + (3x + 1). What is the coefficient of x in the result?

Add: (3x + 5) + (3x + 1). What is the coefficient of x in the result?

A.

7

B.

5

C.

4

D.

6

✓ Correct

Detailed Explanation

Choice D is the best answer. (3x + 5) + (3x + 1) = 6x + 6. Coefficient of x is 6.

Why others are wrong:
A: 7 is incorrect because it does not satisfy the equation.
B: 5 is incorrect because it does not satisfy the equation.
C: 4 is incorrect because it does not satisfy the equation.
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