www.purplemath.com/modules/grphquad2.htm

... a quadratic's leading coefficient as it relates to the graph, and discusses the
vertex and how to find it. ... Also, if a is negative, then the parabola is upside-
down.

www.ask.com/youtube?q=Finding the Vertex of a Parabola&v=rnkk0rC9Gyo

Jul 9, 2013 ... MIT grad explains how to find the vertex of a parabola. This is a simple, fast way
to identify the vertex, taken either from the equation of a ...

www.varsitytutors.com/hotmath/hotmath_help/topics/vertex-of-a-parabola

The vertex of a parabola is the point where the parabola crosses its axis. ... But
the equation for a parabola can also be written in "vertex form": y = a ( x − h ) 2 + k
.

www.khanacademy.org/math/algebra/quadratics/features-of-quadratic-functions/v/ex3-completing-the-square

Sal rewrites the equation y=-3x^2+24x-27 in vertex form (by completing the
square) in order to identify the vertex of the corresponding parabola.

www.mathwarehouse.com/geometry/parabola/vertex-of-a-parabola.php

Finding Vertex from Standard Form. The x-coordinate of the vertex can be found
by the formula − b 2 a , and to get the y value of the vertex, just substitute − b 2 a ...

www.algebralab.org/lessons/lesson.aspx?file=algebra_quad_vertex.xml

The vertex of a parabola is the high point or low point of the graph. The method
you use to find the vertex will depend on the form in which the function is given.

www.virtualnerd.com/algebra-1/quadratic-equations-functions/graphing/graph-basics/vertex-example

Did you know that you can use the formula for the axis of symmetry to help find ...
problem; skill; vertex; parabola; quadratic function; maximum; minimum; max ...

www.wikihow.com/Find-the-Vertex-of-a-Quadratic-Equation

The vertex of a quadratic equation or parabola is the highest or lowest point of
that equation. It lies on the plane of symmetry of the entire parabola as well; ...

www.sophia.org/concepts/finding-the-vertex-of-a-parabola

We explain Finding the Vertex of a Parabola with video tutorials and quizzes,
using our Many Ways(TM) approach from multiple teachers.This lesson shows
how ...

jwilson.coe.uga.edu/emt725/class/sarfaty/emt669/instructionalunit/parabolas/parabolas.html

Lesson 3: Find the equation of our parabola when we are given the coordinates
of its focus and vertex. Lesson 4: Find the vertex, focus, and directrix, and graph ...