y = 3x2+2x-1
Line of symmetry: x = -1/3
Vertex coordinate: (-1/3, -4/3)
2
All the time
15.
x = -2/3,7/6
Unfortunately, limitations of the browser used by Answers.com means that we cannot see most symbols. It is therefore impossible to give a proper answer to your question. Please resubmit your question spelling out the symbols as "plus", "minus", "equals", "squared". I suspect the answer is yes, but it all depends on the exact form of the equation.
The minimum value of the parabola is at the point (-1/3, -4/3)
(1/2, 71 and 3/4)or(0.5, 71.75)
2
The vertex is (5, 11).
It is: 9-4 = 5
All the time
Question can be taken as multiple meanings. Please see discussion.
x = -4 The equation to find this is -b/2a with 8 being the b and 1 being the a.
15.
its a simple parobola symmetric about y axis, having its vertex at (0,-4). we can make its graph by changing its equation in standard form so that we can get its different standard points like vertex, focus, etc.
4 squared minus 2 squared equals 12
x = -2/3,7/6