second after being launched, the ball's height above ground is meters.
seconds after being launched, the ball's height above ground is meter.
The ball was launched from an initial height of meter with an initial velocity of meters per second.
The ball was launched from an initial height of meters with an initial velocity of meter per second.
Explanation
Correct answer: A.
Choice A is correct. It's given that the graph shows the height above ground, in meters, of a ball seconds after the ball was launched upward from a platform. In the graph shown, the x-axis represents time, in seconds, and the y-axis represents the height of the ball above ground, in meters. It follows that for the marked point , represents the time, in seconds, after the ball was launched upward from a platform and represents the height of the ball above ground, in meters. Therefore, the best interpretation of the marked point is second after being launched, the ball's height above ground is meters.
Desmos solution:
Note: The x-coordinate is time after launch, and the y-coordinate is the ball's height above ground.
Enter in Desmos:
Reviewed and rewritten by CookSAT
Why the other choices are wrong
Choice B
Choice B is incorrect and may result from conceptual errors.
Choice C
Choice C is incorrect and may result from conceptual errors.
Choice D
Choice D is incorrect and may result from conceptual errors.