Question

Mrs. Cunningham wants to use rubber tiles to cover the floor of an indoor playground.The graph shows the relationship between the number of rubber tiles used and the total cost.

Answer 1

The unit cost per rubber tile is $6.

Step-by-step explanation:

The unit cost per rubber tile is equal to the slope of the line in the graph.

So, the slope can be calculated using 2 points of the line as:

`m=(y_2-y_1)/(x_2-x_1)`

Where (x1, y1) and (x2, y2) are the coordinates of the points in the line. Then, we can replace (x1, y1) by (2, 12) and (x2, y2) by (4, 24) to get:

`m=(24-12)/(4-2)=(12)/(2)=6`

So, the unit cost per rubber tile is $6.