For y = x2 + 6x − 16,

Determine if the parabola opens up or down.
State if the vertex will be a maximum or minimum.
Find the vertex.
Find the x-intercepts.
Describe the graph of the equation.

Question

For y = x2 + 6x − 16,

Determine if the parabola opens up or down.
State if the vertex will be a maximum or minimum.
Find the vertex.
Find the x-intercepts.
Describe the graph of the equation.

anonymous · Answer

leading coefficient is positive ( it is 1) so it opens up

anonymous · Answer

that makes the second coordinate of the vertex a minimum

anonymous · Answer

well, ahah yeah that part was easy, i should have left that our. @satellite73

anonymous · Answer

find the vertex by knowing that the first coordinate is $-\frac{b}{2a}$ which in your case is 
$$-\frac{6}{2\times 1}=-3$$

anonymous · Answer

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..?