**axis of symmetry**The axis of symmetry is the vertical line passing through the middle of the parabola y=ax

**completing the square**Completing the square is a method used to solve quadratic equations.

**consecutive even integers**Consecutive even integers are even integers that follow right after one another. If an even integer is represented by n, the next consecutive even integer is n+2, and the next after that is n+4.

**consecutive odd integers**Consecutive odd integers are odd integers that follow right after one another. If an odd integer is represented by n, the next consecutive odd integer is n+2, and the next after that is n+4.

**discriminant**In the Quadratic Formula, x=−b±√b2−4ac/√2a the quantity b

**parabola**The graph of a quadratic equation in two variables is a parabola.

**quadratic equation**A quadratic equation is an equation of the form ax

**quadratic equation in two variables**A quadratic equation in two variables, where a,b,andc are real numbers and a≠0 is an equation of the form y=ax

**Square Root Property**The Square Root Property states that, if x

**x-intercepts of a parabola**The x-intercepts are the points on the parabola where y=0.

**y-intercept of a parabola**The y-intercept is the point on the parabola where x=0.

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