5
Answer: DSet 5: Polynomial Functions (Intermediate)
Explanation
PROBLEM
Add: (5x + 3) + (1x + 4). What is the coefficient of x in the result?
Add: (5x + 3) + (1x + 4). What is the coefficient of x in the result?
A.
12
B.
8
C.
7
D.✓ Correct
6
Detailed Explanation
Choice D is the best answer. (5x + 3) + (1x + 4) = 6x + 7. Coefficient of x is 6.
Why others are wrong:
A: 12 is incorrect because it does not satisfy the equation.
B: 8 is incorrect because it does not satisfy the equation.
C: 7 is incorrect because it does not satisfy the equation.