The equation that describes how much money for a certain number of hours is y=18x-18.
Given that when John and Amber works for 2 hours they will get $18 and when they work for 3 hours they will get $36.
We are required to find the equation that shows how much money that they will get for a certain number of hours.
Equation is like the relationship between two or more variables that are expressed in equal to form.
Suppose the number of hours be x and the earning be y.
The points will be (2,18),(3,36).
y-18=(36-18/3-2)*(x-2)
y-18=18/1 (x-2)
y-18=18(x-2)
y-18=18x-36
y=18x-36+18
y=18x-18
Hence the equation that describes how much money for a certain number of hours is y=18x-18.
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