6
Answer: BSet 3: Linear Functions (Intermediate)
Explanation
PROBLEM
If f(x) = 5x + 10, find the value of x when f(x) = 35.
If f(x) = 5x + 10, find the value of x when f(x) = 35.
A.
3
B.✓ Correct
5
C.
25
D.
7
Detailed Explanation
Choice B is the best answer. 5x + 10 = 35. 5x = 25, x = 5
Why others are wrong:
A: 3 is incorrect because it does not satisfy the equation.
C: 25 is incorrect because it does not satisfy the equation.
D: 7 is incorrect because it does not satisfy the equation.