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Question all-va

2.1 Nonlinear Functions - Function composition and evaluation
0:00

  • All values are approximate.
  • The parabola opens downward.
  • The vertex of the parabola is at (0.6 comma 5.5).
  • The parabola passes through the following points:
    • (0.0 comma 3.8)
    • (0.6 comma 5.5)
    • (1.0 comma 4.8)
    • (1.7 comma 0.0)

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 1.0,4.8 in this context?

A.

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

B.

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

C.

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

D.

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