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Sagot :
a) The graph of the equation that represents how much James earns in a
month in which he sells x cars is plotted below
b) From the graph, James needs to sell 30 cars to earn $5000
Let the fixed salary be represented by a
a = $1200
The commission for each car James sells = $125
Let the number of cars that James sells per month be x
The monthly earning of James = The fixed salary + (Commission x Number of cars)
Let the monthly earning be represented by y
y = 1200 + 125x
The graph of the equation y = 1200 + 125x is plotted below
From the graph shown, the number of cars James needs to sell in order to earn $5000 will be estimated by finding the value of x that corresponds to $5000
When y = 5000, x = 30.4
x = 30 (Approximated to the nearest whole number)
From the graph, James needs to sell 30 cars to earn $5000
Learn more here: https://brainly.com/question/1639884

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