where do you find the vertx of a parabola in an equation

Question

where do you find the vertx of a parabola in an equation

Answer 1

ax^2 + bx + c = 0

 

where the x-value of the vertex is defined by  x = -b/(2a)

 

you can check this website on parabola.

 

http://hotmath.com/hotmath_help/topics/vertex-of-a-parabola.html