linear equation in 2 variables
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First, read over this example:
A sales job offers a weekly base salary of $575 plus a commission of $250 for every sale made that week. The weekly earnings for a salesperson can be modeled:
y = 250x + 575
where x (the independent variable) is the number of sales made during the week and y (the dependent variable) is the total earnings of the salesperson for the week.
Using this example as a model, go online and find another real-world application of a linear equation in 2 variables.
Share this equation and discuss what is being modeled as well as what the independent and dependent variables represent, in context. If the example you find uses variables other than x and y, be sure to use x and y instead and write the equation in y = mx+b form.
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