The graph shows Matthew’s earnings.

Matthew's Earnings
Earnings (dollars)

Time (hours)

What is the constant of proportionality that relates Matthew’s earnings, y, to the number of hours he worked, x?
Responses

A $15 per hour$15 per hour

B $16 per hour$16 per hour

C $17 per hour$17 per hour

D $12 per hour

Based on the information provided, it is not possible to determine the constant of proportionality that relates Matthew's earnings, y, to the number of hours he worked, x. The graph needs to provide more specific data in order to calculate the constant of proportionality.

The line is aligned with 1 hour =16 dollars

In that case, the constant of proportionality that relates Matthew's earnings, y, to the number of hours he worked, x, is $16 per hour.