Question

http://prntscr.com/l5buso

Answer 1

@Vocaloid @563blackghost

Answer 2

Your function is in the format of: \(\bf{y=ax^{2}+bx+c}\)

In a parabola there is a minimum and a maximum point. If the parabola points up then it has a minimum point, if it points down then it has a maximum point.

You can determine the way a parabola points by looking at \(\bf{a}\).

\(\large\bf{a>0:The~parabola~points~up}\)
\(\large\bf{a<0:The~parabola~points~down}\)

In which way does your equation point? Up or down?

Answer 3

down?

Answer 4

Correct, so that would mean that your equation has a maximum point.

Answer 5

so thats part a how about b

Answer 6

@563blackghost

Answer 7

Your vertex is formated as: \(\bf{(h,k)}\)

To find \(\bf{h}\) you would follow by this formula:

\(\large\bf{h=\frac{-b}{2a}}\) This will give you the x-coordinate of your vertex.

`Remember` that the your equation format is: \(\bf{ax^{2}+bx+c}\).

So you would plug into your formula.

\(\Large\bf{h=\frac{-50}{2(-1)}}\)

What is the x-coordinate of your vertex?

Answer 8

@Nicole