SOLUTION: Find the vertex, Axis symetry for f(x)=2x^2+14X+26

To find a vertex, use the standard formula for its x-coordinate

    x = ,


where "a" is the coefficient at x^2 and B is the coefficient at x.


In your case,  a = 2, b = 14,  so  x =  =  = -3.5.


To find y-coordinate of the vertex, calculate the function value at x= 3.5.