dat person
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- Dec 9, 2021
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I need help understanding how to find the zeros and vertex just by looking at the equation "h=20t-5[imath]t^2[/imath]" Not sure if this is the right place to ask it in
Another way you can find the vertex of a quadratic function by: [math]\frac{-b}{2a} =\frac{20}{2*5} = 2[/math]
Hi person. We can't "see" the zeros and the vertex coordinates by just looking at that equation. There's thinking involved. (Sometimes, we get a quadratic polynomial in vertex form. In those cases, we can read off the vertex coordinates.)find the zeros and vertex just by looking at the equation
Yes, that formula gives you the first part of the vertex -- the t-coordinate. (That formula is often one of the first things I think of, when I see "vertex" in a quadratic word problem.)Another way you can find the vertex of a quadratic function
zeros ?? Sloppy.If you've got to find the zeroes anyway, I think it is easier to find the half-way value.
I realise, of course, that if there are no zeroes then the -b/2a method will get you out of trouble. But if c=0, there will always be zeroes.
Ok. If c=0, and b\(\displaystyle \neq0\), there will always be zeroes.zeros ?? Sloppy.
Now I am happy. Thank you for making my evening!Ok. If c=0, and b\(\displaystyle \neq0\), there will always be zeroes.