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Advanced Math / Nonlinear functions Difficulty: Easy

The graph shows the height above ground, in meters, of a ball $x$ seconds after the ball was launched upward from a platform. Which statement is the best interpretation of the marked point $left parenthesis 1.0 comma 4.8 right parenthesis$ in this context?

$1.0$ second after being launched, the ball's height above ground is $4.8$ meters.

$4.8$ seconds after being launched, the ball's height above ground is $1.0$ meter.

The ball was launched from an initial height of $1.0$ meter with an initial velocity of $4.8$ meters per second.

The ball was launched from an initial height of $4.8$ meters with an initial velocity of $1.0$ meter per second.

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Explanation

Choice A is correct. It's given that the graph shows the height above ground, in meters, of a ball $x$ 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 $left parenthesis 1.0 comma 4.8 right parenthesis$ , $1.00$ represents the time, in seconds, after the ball was launched upward from a platform and $4.80$ represents the height of the ball above ground, in meters. Therefore, the best interpretation of the marked point $left parenthesis 1.0 comma 4.8 right parenthesis$ is $1.00$ second after being launched, the ball's height above ground is $4.80$ meters.

Choice B is incorrect and may result from conceptual errors.

Choice C is incorrect and may result from conceptual errors.

Choice D is incorrect and may result from conceptual errors.