7
Answer: BSet 4: Polynomial Functions (Intermediate)
Explanation
PROBLEM
Add: (3x + 4) + (3x + 5). What is the coefficient of x in the result?
Add: (3x + 4) + (3x + 5). What is the coefficient of x in the result?
A.
12
B.✓ Correct
6
C.
5
D.
4
Detailed Explanation
Choice B is the best answer. (3x + 4) + (3x + 5) = 6x + 9. Coefficient of x is 6.
Why others are wrong:
A: 12 is incorrect because it does not satisfy the equation.
C: 5 is incorrect because it does not satisfy the equation.
D: 4 is incorrect because it does not satisfy the equation.