Question

rose, a doctors office receptionist, tracked the average waiting time at the office each month. average waiting time at a doctors office according to the graph, what was the rate of change between january and may? minutes per month

Explanation:

Step1: Identify data points

January: (1, 40), May: (5, 30)

Step2: Apply rate of change formula

Rate of change = $\frac{y_2 - y_1}{x_2 - x_1}$ = $\frac{30 - 40}{5 - 1}$

Step3: Calculate the value

$\frac{-10}{4}$ = -2.5

Answer:

-2.5