algebra

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1990 55.8
1994 47.2
1996 40.1
1999 42.4
2001 47.5

a. Code the years using t = 0 for 1990 and fit a quadratic function to the data with the regression program on your calculator. Equation is.

b. Predict the maintenance and repair costs in 2010.

I don't have a graphing calculator, can someone help me with this how to do this...

  • algebra -

    type in graphing calculator in a search engine and it brings up quite a few online free ones

  • algebra -

    yeah but i can't figure out how to use those...

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