Mrs. Flanagan throws a baseball upward so that its height y in feet after x seconds is given by y = -16x^2 + 80x + 3. Find the maximum height of the stone. When will this occur? The stone will reach its maximum height of feet after seconds. Sketch a graph of the quadratic. Plot at least 5 points. Remember to label the axis.

Use a calculator to verify that σ(x) = 62, σ(x2) = 1034, σ(y) = 644, σ(y2) = 93,438, and σ(x y) = 9,622. compute r. (enter a number. round your answer to three decimal places.) as x increases from 3 to 22 months, does the value of r imply that y should tend to increase or decrease? explain your answer. given our value of r, y should tend to increase as x increases. given our value of r, we can not draw any conclusions for the behavior of y as x increases. given our value of r, y should tend to remain constant as x increases. given our value of r, y should tend to decrease as x increases.