Systems of linear inequalities in practice
The following exercises are solved in this step. We invite you to try to solve them before watching the video.
In any case, you will find below a PDF file with the solutions.
Exercise 1.
Francis receives a gift card for the amount of 50 euros from an online store, that allows him to buy books at (1.29) euros each, or DVDs at (2.10) euros each. Set up a system of linear inequalities that represents the situation, and identify the range of possible purchases by means of a graph.
Discussion
In the comments section below, share a real-life example that you can model as a system of linear inequalities.
Precalculus: the Mathematics of Numbers, Functions and Equations
Precalculus: the Mathematics of Numbers, Functions and Equations
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