The Height Y in Feet of a Ball Thrown by a Child

question 110

Multiple Choice

The height y in feet of a ball thrown by a child is modeled by $y = - 0.1 x ^ { 2 } + 7 x + 4$ , where x is the horizontal distance in feet from where the ball is thrown. How high is the ball when it leaves the child s hand?

• A) 0.4 foot
• B)0.1 foot
• C) 13.9 feet
• D) 11 feet
• E) 4 feet

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