# Math Question ?

A.) An employee of the cable company made a linear equation of the data using the 2002 cost as a starting value and the 2005 cost as a second data point. What is the company’s equation? Use C for the cost per month and t for time in years since 2002. Use * to indicate multiplication

B.) A consumer advocate made a linear equation of the data using the 2002 cost as a starting value and the 2009 cost as a second data point. What is the advocates equation? Use C for the cost per month and t for time in years since 2002. Use * to indicate multiplication

Which of the following is the most accurate estimate of the relative increase in the monthly cost of cable services from 2002 to 2010?

A.)90%-100%B.)75%-85%C.)50%-60%D.)35%-45%

### 1 Answer

- jacob sLv 71 month ago
a) Slope = (43.35 - 34.99)/(3 - 0) = 2.79

So the equation is Pc = 2.79t + 34.99

b) Slope = (57.95 - 34.99)/(7 - 0) = 3.28

So the equation is Pa = 3.28t + 34.99

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