SQB Logo
sqbofficial

Question during

2.1 Nonlinear Functions - Quadratic graphs and vertex form
0:00

During the first part of an experiment, a ball was launched from a 7 -foot-tall platform. The graph shows the height y , in feet, of the ball x seconds after it was launched during the first part of the experiment.

  • The parabola opens downward.
  • The vertex is at the approximate point (0.3 comma 8.3).
  • The parabola passes through the following points:
    • (0 comma 7)
    • approximately (0.3 comma 8.3)
    • approximately (0.6 comma 7)

During the second part of the experiment, the ball was launched the same way, but from a platform that is 2 feet shorter than the first platform. Which of the following graphs could represent the height y , in feet, of the ball x seconds after it was launched during the second part of the experiment?

A.

  • The parabola opens downward.
  • The vertex is at the approximate point (0.3 comma 5.0).
  • The parabola passes through the following points:
    • approximately (0 comma 3.7)
    • approximately (0.3 comma 5.0)
    • approximately (0.6 comma 3.7)

B.

  • The parabola opens downward.
  • The vertex is at the approximate point (0.3 comma 6.3).
  • The parabola passes through the following points:
    • (0 comma 5)
    • approximately (0.3 comma 6.3)
    • approximately (0.6 comma 5)

C.

  • The parabola opens downward.
  • The vertex is at the approximate point (0.3 comma 10.3).
  • The parabola passes through the following points:
    • (0 comma 9)
    • approximately (0.3 comma 10.3)
    • approximately (0.6 comma 9)

D.

  • The parabola opens downward.
  • The vertex is at the approximate point (0.3 comma 15.3).
  • The parabola passes through the following points:
    • (0 comma 14)
    • approximately (0.3 comma 15.3)
    • approximately (0.6 comma 14)