Question

A ski club charges a $45 membership fee plus $18 to rent ski equipment per day. Which of the following equation can be used to find the total cost of membership at the club, when renting equipment for X days?

Answer 1

y=45+18x 45 is a constant and stable number, while the 18 changes per day.

Answer 2

`y = 18x + 45`

Explanation:

You can use a linear equation of the form

`y = mx + b` to represent the situation.

where b is the constant amount represented by the intercept with the y-axis, in this case b e is the cost of membership.

m is the slope, and in this case it is the cost per day of renting a team for x days.

y is the total cost of membership at the club, when renting equipment for X days

So the linear equation is:

`y = 18x + 45`