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Linear Equations in the real world

They're in our lives every day: cell phone plans!

Linear Equations:Slope Intercept Form | slope of a line | y-intercept
Student Worksheet Based on this web page

Lineanr Equation, Real World

Cell Phone Company A's calling plan is represented by the line on the left. How much does Company Charge for 20 minutes of usage?

Answer

Graph of Rate

How much does cell phone company B charge for thirty minutes of usage?

Answer

$6 will buy how many minutes on company C's cell phone plan?

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