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12 terms

axis of symmetry

the line that divides a parabola into two matching halfs

completing the square

a method of solving quadratic equations by turning part of the equation into a perfect square trinomial

discriminant

b^2 - 4ac This can be used to determine the number of solutions of an equation

maximum

The y-coordinate of the vertex of a downward opening parabola.

minimum

The y-coordinate of the vertex of an upward opening parabola.

parabola

The graph of a quadratic function

quadratic equation

an equation that can be written in the standard form ax^2 +bx + c = 0

quadratic formula

quadratic function

The graph of this function is a parabola

root of an equation

The solution(s) of an equation.

vertex

The highest or lowest point on a parabola

zero of a function

The x-intercept(s) of the graph of a function