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Cecilia Lovinger hr 6

Cecilia Lovinger hr 6. Mediacom Phone Services. y = 50x + 40. y = total cost x = the number of months 50 = t h e cost per month 40 = the installation fee. Chatterbox Communications. y = 30x + 60. y = total cost x = the number of months 30 = the cost per month 60 = installation fee.

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Cecilia Lovinger hr 6

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  1. Cecilia Lovingerhr 6

  2. Mediacom Phone Services y = 50x + 40 y = total cost x = the number of months 50 = the cost per month 40 = the installation fee

  3. Chatterbox Communications y = 30x + 60 y = total cost x = the number of months 30 = the cost per month 60 = installation fee

  4. Graphing method y x

  5. Substitution method y = 50x + 40 y = 30x + 60 30x + 60 = 50x + 40 -30x =-30x 60 = 20x + 40 -40 - 40 20 = 20x 20 = 20 1 = x (1,90) y = 30x + 60 y = 30(1) + 60 y = 90 Now, plug x into one of the equations to find y.

  6. Elimination method (1,90) y = 50x + 40 y = 30x + 60 -3(y = 50x + 40) 5(y = 30x + 60) -3y = -150x -120 5y = 150x + 300 2y = 180 2 = 2 y = 90 • y = 30x + 60 • (90) = 30x + 60 • 60 - 60 • = 30x • 30 = 30 • 1 = x Now, insert the y into one of the equations to solve for x.

  7. Conclusion Chatterbox communications was compared to Mediacom Phone Services. Although chatterbox’s installation fee is 20 dollars higher than Mediacom’s installation fee, Chatterbox’s price per moth is cheaper.

  8. Conclusion During month 1 both companies will cost the same but, as the months increase, Mediacom’s price will continue to grow larger than Chatterbox’s. So, In conclusion chatterbox will be the cheaper company to use.

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