To plot: The graph for the number of hours to work at each job if Rondell wants to make the trip.
Explanation of Solution
Giveninformation:
Earning at pizza palace per hour is
Earning at car wash per hour is
The amount to save =
Calculation :
Let
Let
By law, cannot work more than 25 hours per week and 8 weeks for Latin class.
It means,
The inequality is as follows,
Now
The inequality is as follows,
Consider the following system of inequalities:
Use maple to plot the graph of the above equation,
To test the solution by substituting (0, 0) for
First, substitute the points
This is true, means 0 is less than 200.
Now, substitute the points
This is false, means 0 is not greater than 925.
Hence, the graph of the inequalities overlap, equation (1) goes towards origin and equation (2) goes far away from origin. The solution is in the shaded green region.
Chapter 3 Solutions
Glencoe Algebra 2 Student Edition C2014
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