Quadratic Formula Questions and Answers

Quadratic Formula

If you have quadratic function (parabola) `f(x)=ax^2+bx+c` where `a<0` (as in your case) its maximum value will be `-(b^2-4ac)/(4a)` (that is the height of vertex of parabola), and that maximum...

Latest answer posted May 14, 2013 11:19 am UTC

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Quadratic Formula

We are given the initial speed of the coin and the time it took before it hit the water. The given initial speed is the horizontal speed -- that is, the horizontal component of the initial speed....

Latest answer posted August 26, 2013 8:14 am UTC

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Quadratic Formula

Take note that the equation is in the form h(t) = at^2 +bt + c. Here, a < 0 so the parabola opens upward. Therefore, the maximum height can be found on the ordinate of the vertex. We will...

Latest answer posted March 21, 2013 2:26 am UTC

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