9
Answer: DSet 1: Polynomial Functions (Intermediate)
Explanation
PROBLEM
Add: (3x + 5) + (4x + 1). What is the coefficient of x in the result?
Add: (3x + 5) + (4x + 1). What is the coefficient of x in the result?
A.
9
B.
6
C.
14
D.✓ Correct
7
Detailed Explanation
Choice D is the best answer. (3x + 5) + (4x + 1) = 7x + 6. Coefficient of x is 7.
Why others are wrong:
A: 9 is incorrect because it does not satisfy the equation.
B: 6 is incorrect because it does not satisfy the equation.
C: 14 is incorrect because it does not satisfy the equation.