Jimmy threw a baseball in the air from the roof of his house. The path followed by the baseball can be modeled by the function f(t) = -8t^2 + 48t + 40, where t represents the time in seconds after the ball was thrown and f(t) represents its height, in feet, from the ground.

Part A. How high is the roof from the ground? How many seconds did it take for the ball to hit the ground after it was thrown off the roof?

Part B. Jimmy wanted to throw the ball at a maximum height of 120 feet. Did Jimmy's baseball reach this height after it was thrown? Explain your answer.

Given are five observations for two variables, x and y. xi 1 2 3 4 5 yi 3 7 5 11 14 which of the following is a scatter diagrams accurately represents the data? what does the scatter diagram developed in part (a) indicate about the relationship between the two variables? try to approximate the relationship betwen x and y by drawing a straight line through the data. which of the following is a scatter diagrams accurately represents the data? develop the estimated regression equation by computing the values of b 0 and b 1 using equations (14.6) and (14.7) (to 1 decimal). = + x use the estimated regression equation to predict the value of y when x = 4 (to 1 decimal). =