Question

The graph shows the number of tacos ordered and the cost.
What is the unit rate?

Answer 1

(2,1), (4,2), (6,3) or (8,4) are the numbers we will use to find the first differences which will give us the unit rate

2/1 = 2
4/2= 2
6/3= 2
8/4= 2

therefore this graph is linear and its unit rate is 2.