Task 2-2: Exploring high school math topic

System of Equations:  determining the values of two or more variables.
Here’s a link to web-based software that will calculate a system of equations:
However, I would recommend using a TI graphing calculator’s capabilities for this.  Not only is the calculator very capable, many students should have access to one (hopefully through school).
Solve y=3x+1 and y=-x+5 by graphing the equations and finding out where they intersect.
The Smith family is trying to decide between installing cable or satellite.  Cable has a one-time installation charge of $45 and then $34 charge per month.  Satellite has a $185 charge for installation and then ongoing costs of $20 per month.  What would you advise they do?


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