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3-106.

   At football practice the quarterback was throwing a football yards on average, and the ball was reaching a height of yards. Homework Help ✎

  1. Write an equation to represent the typical path of the practice ball.

    Draw a sketch of the football's projection to visualize the parabola.

    Recall the graphing form for a parabola: 

  2. At the big game, the football was underinflated, and the quarterback was throwing an average of yards with the ball reaching a height of yards. Write an equation representing the typical path of the underinflated ball.

    See hints from part (a).