roblem 12: Least Squares Problem. Given the 5 points, (-2,4), (-1,2), (0, 1), (1, 1), and (2, 2) : a) Find an equation for the line that best fits this data (in the sense of least squares). b) Now find the best fitting quadratic (parabola) for these five points (in the sense of least squares). [Hint: Use the same method as was used in finding the best fit line, only with a quadratic function of the form p(x) = ax +bx+ c. Find a, b, and c that minimizes the sum of the square errors between the actual data and the values on the parabola.]