Quadratic Equation Word Problem Please Help

Quadratic equations and inequalities, variation equations, function notation, systems of equations, etc.
Posts: 1
Joined: Thu Mar 24, 2011 10:57 pm

Quadratic Equation Word Problem Please Help

Postby ilovemath92 » Thu Mar 24, 2011 11:07 pm

In order to dunk a basketball, you need to jump 2.5ft in the air to dunk the ball. The height that your feet are above the ground is given by the function (h)=-4T(4T+3). What is the maximum height your feet will be above the ground? Will you be able to dunk the basketball.

This problem was on a review for a test and stumped the tutor. We are wondering if the problem is written incorrectly or there is info missing.

Thanks all!

User avatar
Posts: 200
Joined: Mon Dec 08, 2008 5:18 pm

Re: Quadratic Equation Word Problem Please Help

Postby little_dragon » Fri Mar 25, 2011 11:19 am

i did this in school last semester. they want u to find the vertex b/c max is at vertex. u can use formula here:


go down page about 1/2 to get the formula

Return to “Intermediate Algebra”