class 051019

How would you solve the equation 5 t^2 + 3 t + 2 = 4 t - 7 using DERIVE?

How would you enter the data points (0, 100), (10, 70), (20, 50) into DERIVE?

How would you then fir a quadratic function to this data set?

The following data were taken for a series of pendulums:

pendulum length in feet number of cycles counted in 60 seconds
1 55
2 40
3 33
4 29
5 23

Plot this data, with y being the number of cycles and x being the pendulum length:

If this function is modeled by a power function of the form y = a x^p, then do you think p is positive or negative, and why?

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