Use the image to answer the question.

A curve is plotted in the first quadrant of a coordinate plane. The x-axis for Time in seconds ranges from 0 to 1.25 in increments of 0.25 and the y-axis for Height in feet ranges from 0 to 18 in increments of 2.

The graph here represents the height of a ball when being dropped from a height of 16 feet. Which of the following points can be used to find the quadratic equation that models the graph?

(1 point)
Responses

(0,0)
and (1,0)
left parenthesis 0 comma 0 right parenthesis and left parenthesis 1 comma 0 right parenthesis

(16,0)
, (12,0.5)
, and (0,1)
left parenthesis 16 comma 0 right parenthesis , left parenthesis 12 comma 0.5 right parenthesis , and left parenthesis 0 comma 1 right parenthesis

(0,16)
, (0.5,12)
, and (1,0)
left parenthesis 0 comma 16 right parenthesis , left parenthesis 0.5 comma 12 right parenthesis , and left parenthesis 1 comma 0 right parenthesis

(0,16)
, (0.375,14)
, and (1,0)

1 answer

To model the motion of a ball dropped from a height of 16 feet, we should look for points that represent the height of the ball at specific times.

From the options provided:

  1. (0,0) and (1,0) - These points represent no height at the start and at time 1 second, which does not relate to the drop from 16 feet.

  2. (16,0), (12,0.5), and (0,1) - This option contains a point that doesn't reflect the height of the ball accurately, as it seems to consider 0.5 seconds instead of using increasing times.

  3. (0,16), (0.5,12), and (1,0) - This set of points indicates that at time 0 seconds, the height is 16 feet (when the ball is released), at 0.5 seconds, the height is 12 feet (the ball has dropped), and finally at 1 second, the height is 0 feet (the ball has hit the ground).

  4. (0,16), (0.375,14), and (1,0) - This option also begins with the height of 16 feet at time 0 seconds and records a 14 feet height at 0.375 seconds, with the ball reaching 0 feet (ground level) at 1 second.

Between options 3 and 4, both appear to be valid, but option 3 gives a more standard set of intervals (0 seconds, 0.5 seconds, and then 1 second).

Thus, the best answer to find the quadratic equation that models the graph is:

(0,16), (0.5,12), and (1,0).