Homework Help: algebra

Posted by Mike on Wednesday, June 18, 2008 at 10:09pm.

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 - Anonymous, Wednesday, June 18, 2008 at 10:15pm
type in graphing calculator in a search engine and it brings up quite a few online free ones
algebra - Mike, Wednesday, June 18, 2008 at 10:17pm
yeah but i can't figure out how to use those...

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