Question

amir records the number of customers who order hummus at his mediterranean café on saturday. the scatter plot shows his data and a line of good fit. based on the line of good fit, how many customers order hummus per hour? total number of customers hours after café opening 5 17 20 35

Explanation:

Step1: Identify two points on line

Let's take two points on the line of good - fit, say (2, 40) and (6, 100).

Step2: Calculate slope

The slope formula is $m=\frac{y_2 - y_1}{x_2 - x_1}$. Here, $x_1 = 2,y_1 = 40,x_2 = 6,y_2 = 100$. So $m=\frac{100 - 40}{6 - 2}=\frac{60}{4}=15$. The slope of the line represents the number of customers who order hummus per hour.

Answer:

15