Question

The cost of renting a community center is $100, with an additional cost of $10 per guest.

Which graph has the most appropriate scales and units for this situation?

Answer 1

For this case, the first thing we are going to do is write the equation that represents this problem.

We then have to define variables:

x: number of guests

y: total cost

The equation modeling the problem is given by:

We observe that the equation is linear.

The appropriate scales for the problem are:

Horizontal axis: 1 in 1 starting from 0.

Vertical axis: $ 20 in $ 20 starting from 0.