9.01], [9.02] Create your own unique quadratic equation in the form y = ax2 + bx + c. Use complete sentences and show all work to determine the following:

Does the graph open up or down? How do you know?
Explain whether the graph has a maximum or minimum point.
Find the vertex and x-intercepts of the graph.

Question

9.01], [9.02] Create your own unique quadratic equation in the form y = ax2 + bx + c. Use complete sentences and show all work to determine the following:

Does the graph open up or down? How do you know? 
    Explain whether the graph has a maximum or minimum point. 
    Find the vertex and x-intercepts of the graph.

anonymous · Answer

i think the "complete sentence" part is on you
if you want easy x - intercepts, start with equation in factored form, say 
$$y=(x-5)(x+3)$$ which obviously has zeros at -3 and 5

anonymous · Answer

multiply out and see what you get. since the leading coefficient is 1, and 1 is positive, it will open up

anonymous · Answer

vertex will be at 
$$x=-\frac{b}{2a}$$ you can find that easily.  then replace x by what you get to find the y - value of the vertex

anonymous · Answer

hint: if you use the example i write above, the first coordinate of the vertex will be half way between -3 and 5, which is 1.

anonymous · Answer

its -1 lol bt thanks