The function h(t)=−49t² + 98t models the height of a ball, h(t), in feet, t seconds after being launched upward. Which of the following is equivalent to this function and most easily reveals the length of time the ball is in the air? A. h(t) = −49t (t+2)
B. h(t) = 98t − 49t²
C. h(t) = −49t (t−2)
D. h(t) = −49 (t² − 2t)

Triangle abc is reflected over the line y=x triangle abc has points (-6,-,-1) and (-5,-6) what is the c coordinate

The chs baseball team was on the field and the batter popped the ball up. the equation b(t)=80t-16•16+3.5 represents the height of the ball above the ground in feet as a function of time in seconds. how long will the catcher have to get in position to catch the ball before it hits the ground? round to the nearest second

These tables represent a quadratic function with a vertex at (0, -1). what is the average rate of change for the interval from x = 9 to x = 10?