1. Use technology to solve the appropriate matrix equation to find the quadratic equation that is the
best fit to the points (-2,25), (3,0) , (5,10) and (6,33).
2. Often data is expected to follow an exponential growth model of the form y = A^ekt, where t measures
time and k is called the growth rate. By rewriting the equation as log y = k^t+logA, use this technique
to find the values of A and k that give the best t of the exponential growth model to experimental
data where the values of y at times 0, 1, 2 and 3 are 11, 23, 42 and 80 respectively.
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