We saw that we can
- Enter a table of data into our Calculators L1 and L2
- Perform Regressions (Stat> Calc #4 Linear, #5 Quadratic or #6 Cubic)
- Decide which is best (Look at the r or r^2 values - closer to 1 or -1 is better)
- Copy and Paste the best function into y= to graph (y= VARS #5Statistics > > Enter)
- Set your windows in the context of the question
- Solve problems using either the 2nd> Calc #1 Value if you know X and are looking for Y, OR graph y2 = known value and find the intersection
Here are some notes:
# of Turning Points = Number of Local Max or Min Points
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