SEE:
So I typically use this formula and this is an easy way to find the axis of symmetry: -b/2a,
-b is the x and a is the first coefficient in this equation:
PLAN:
Applying this all together check each equation to see if the axis of symmetry is 1/4 and that would be
DO:
-1/2(-2) = -1/-4 or 1/4
The first option as we can see is not correct
Moving onto the second...
-b/2a
-(-1)/2(2)
1/4
Second option is not correct
Third choice
-b/2a
-1/2(2)
-1/4
This option as we can see is correct.
ANSWER:
Our answer here would be [tex]x^2+2x-1[/tex]
