Use the Least-Square method to find a line in the form of a= do – d · I that best fits the following 3 points: (1, 0), (–1, 2), (3, 4)

A penny is thrown from the top of a 48.9-meter building and hits the ground 3.04 seconds after it was thrown. The penny reached its maximum height above the ground 0.79 seconds after it was thrown. Define a quadratic function, h, that expresses the height of the penny above the ground (measured in meters) as a function of the number of seconds elapsed since the penny was thrown, t.     What is the maximum height of the penny above the ground?

Find a quadratic function whose graph passes through the following points: (0, 0), (1, 1), (9, -23). If there is no solution, enter NO SOLUTION.