A video of the path of a ball thrown by a baseball player was analyzed with a grid covering the TV screen. The video was paused three times, and the position of the ball was measured each time. The coordinates obtained are shown in the table. (x and y are measured in feet.) Horizontal distance, x 15 30 Height, y 6.0 9.8 12.5 (a) Use a system of equations to find the equation of the parabola y = ax2 + bx + c that passes through the three points. Solve the system using matrices. (Round each coefficient to four decimal places.) y = (b) Use a graphing utility to graph the parabola.

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A video of the path of a ball thrown by a baseball player was analyzed with a grid covering the TV screen. The video was paused three times, and the
position of the ball was measured each time. The coordinates obtained are shown in the table. (x and y are measured in feet.)
Horizontal distance, x
15
30
Height, y
6.0
9.8
12.5
(a) Use a system of equations to find the equation of the parabola y = ax2 + bx +c that passes through the three points. Solve the system
using matrices. (Round each coefficient to four decimal places.)
y =
(b) Use a graphing utility to graph the parabola.
Transcribed Image Text:A video of the path of a ball thrown by a baseball player was analyzed with a grid covering the TV screen. The video was paused three times, and the position of the ball was measured each time. The coordinates obtained are shown in the table. (x and y are measured in feet.) Horizontal distance, x 15 30 Height, y 6.0 9.8 12.5 (a) Use a system of equations to find the equation of the parabola y = ax2 + bx +c that passes through the three points. Solve the system using matrices. (Round each coefficient to four decimal places.) y = (b) Use a graphing utility to graph the parabola.
(c) Graphically approximate the maximum height of the ball and the point at which the ball struck the ground. (Round your answers to the
nearest whole number.)
maximum height
ft
point at which the ball strikes the ground
ft
(d) Analytically find the maximum height of the ball and the point at which the ball struck the ground. (Round your answers to three decimal
places.)
maximum height
ft
point at which the ball strikes the ground
ft
(e) Compare your results from parts (c) and (d).
The results are similar.
The results are considerably different.
Transcribed Image Text:(c) Graphically approximate the maximum height of the ball and the point at which the ball struck the ground. (Round your answers to the nearest whole number.) maximum height ft point at which the ball strikes the ground ft (d) Analytically find the maximum height of the ball and the point at which the ball struck the ground. (Round your answers to three decimal places.) maximum height ft point at which the ball strikes the ground ft (e) Compare your results from parts (c) and (d). The results are similar. The results are considerably different.
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