Help please ? I already got one part down.

Question

anonymous · Answer

attachment

anonymous · Answer

@amistre64

amistre64 · Answer

it would help if there was some specific information included

anonymous · Answer

I attached a picture of the question and I started answering it.

anonymous · Answer

For y = x^2 + 6x − 16

amistre64 · Answer

you say this opens down, why?

amistre64 · Answer

for large values of x (positive or negative); the "x^2" term dominates the landscape.  So we can compare this to y=x^2 at the ends

does y=x^2 open up?  or down?

anonymous · Answer

I have a graphing app and it opens down

amistre64 · Answer

then you have mistyped the equation.  I cant determine any specifics if I do not have the actual information to work with.

anonymous · Answer

Let me post the whole question again ...

amistre64 · Answer

k

anonymous · Answer

attachment

amistre64 · Answer

that one has the equation in it :)

you graphing app is either in error, or you mistyped it into the app

amistre64 · Answer

http://www.wolframalpha.com/input/?i=x%5E2%2B6x-16

amistre64 · Answer

on that wolf page, where it says "parabola" there is a properties tab that has the vertex in it; further down the page is the "roots" whic are the x intercepts as well