heather works as a consultant who earns a weekly salary plus an amount every hour she works. if her total earning are represented by y for x total hours worked how much does she earn per hours
x y
2 330
3 370
4 410
5 450
To find out how much Heather earns per hour, we need to determine the additional amount she earns per hour worked. To do this, we can calculate the difference in earnings between consecutive hours worked.
First, let's calculate the difference in earnings between 2 hours worked and 3 hours worked:
370 - 330 = 40
Next, let's calculate the difference in earnings between 3 hours worked and 4 hours worked:
410 - 370 = 40
Finally, let's calculate the difference in earnings between 4 hours worked and 5 hours worked:
450 - 410 = 40
Since the difference in earnings is consistent at $40 for each additional hour worked, Heather earns $40 per hour worked in addition to her weekly salary.