Question

Tom is planning a birthday party for his nephew at the local skating rink. There is a standard fee of $25 plus an additional $3 for each child. Which function would best indicate the cost for the party

Answer 1

For this case, the first thing we must do is define variables:
x: number of children
y: total cost
We now write the equation that models the problem.
We have then:
y = 3x + 25
Answer:
A function that would best indicate the cost for the party is:
y = 3x + 25