Question

(a) (4 points) how much does adeline receive for working 4 hours?
(b) (4 points) how many hours does she have to work to earn $30?
(c) (4 points) what is the rate of pay?

Explanation:

Step1: Find wage for 4 hours

From the graph, the point at 4 hours corresponds to $\$48$.

Step2: Calculate hours for $\$30$

First, find hourly rate: $\frac{\$12}{1\ \text{hour}} = \$12/\text{hour}$. Then hours = $\frac{30}{12} = 2.5$.

Step3: Determine pay rate

Use 1 hour wage: $\frac{12}{1} = 12$.

Answer:

(a) $\$48$
(b) 2.5 hours
(c) $\$12$ per hour