AlgebraEasyCost function with a joining fee
Algebra practice question
A gym charges a $10 joining fee plus $5 for each visit. Which function gives the total cost C, in dollars, for v visits?
- A. C = 5v + 10Correct
- B. C = 10v + 5
- C. C = 15v
- D. C = 5v − 10
Answer: A. C = 5v + 10
$5 per visit gives 5v, plus the one-off $10.
Why the other answers are wrong
- B. C = 10v + 5
- This charges $10 per visit and a $5 fee.
- C. C = 15v
- This charges $15 every visit and no fee.
- D. C = 5v − 10
- The fee is added, not subtracted.
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