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Start by thinking about Jeraly’s earnings. In the equation y=9x, y is the amount of money she earns for working x hours. How much does she earn per hour? That is her rate of change.
Jeraly's Earnings
y=9x
Yassil's Earnings
Time Worked (hr) Money Earned ($)
3 36
4 48
5 60
7 84
Jeraly earns
dollars per hour. 00000000000000 Yassil earns ? dollars per hour.

Sagot :

Answer: Yassil earns $12 per hour.

Step-by-step explanation: For Jeraly, the equation y = 9x represents her earnings, where y is the amount of money she earns for working x hours. Since the equation is in the form y = mx, where m represents the rate of change or earnings per hour, we can see that her earnings per hour are $9.

Now, for Yassil, we can find his earnings per hour using the given data points. We can calculate the rate of change by finding the slope of the line passing through the points (3, 36), (4, 48), (5, 60), and (7, 84). By using the formula for slope, which is (change in y) / (change in x), we can find the average rate of change, which represents the earnings per hour.

For Yassil:

Slope = (Change in Money Earned) / (Change in Time Worked)

= (84 - 36) / (7 - 3)

= 48 / 4

= $12 per hour

So, Yassil earns $12 per hour.

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