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1

Set 3: Polynomial Functions (Advanced)

Explanation

Answer: C

PROBLEM

Subtract: (9x + 5) - (1x + 4). What is the coefficient of x in the result?

Subtract: (9x + 5) - (1x + 4). What is the coefficient of x in the result?

A.

10

B.

6

C.

8

✓ Correct
D.

7

Detailed Explanation

Choice C is the best answer. (9x + 5) - (1x + 4) = 8x + 1. Coefficient of x is 8.

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