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19 April, 12:32

A soccer ball is kicked from ground level. The function y = - 12x (x - 6) shows the height in feet) of the

ball, where x is time (in seconds). After how many seconds will the ball hit the ground?

The ball will hit the ground in

seconds.

+2
Answers (1)
  1. 19 April, 13:51
    0
    6 seconds

    Step-by-step explanation:

    Given

    y = - 12x (x - 6)

    When the ball hits the ground then height of ball is zero

    let y = 0, that is

    - 12x (x - 6) = 0

    Equate each factor to zero and solve for x

    - 12x = 0 ⇒ x = 0 ← when ball is first kicked

    x - 6 = 0 ⇒ x = 6 ← when the ball hits the ground.

    The ball hits the ground after 6 seconds
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