  Math Central - mathcentral.uregina.ca  Quandaries & Queries    Q & Q    Topic: piecewise linear equations   start over

One item is filed under this topic.    Page1/1            A piecewise linear equation 2000-11-24 From Jacky:There is a light bulb and it is given that the light bulb cost \$0.75 and the cost of operating it is \$0.0081 per hour. From the information give, I came up with the linear equation: Let c be total cost and Let h be hours used. Therefore: c = 0.0081h + 0.75 represents the total cost of the light bulb and the electricity. However, the second part of the question added the fact that the light bulb will only last for 800 hours. If the light bulb is replaced as soon as it burns out exactly after every 800 hours, how can I write an equation that represents that? Is it possible? What would it look like on the graph.Answered by Harley Weston.      Page1/1    Math Central is supported by the University of Regina and The Pacific Institute for the Mathematical Sciences.    about math central :: site map :: links :: notre site français