Unit 5 & 6 Quadratics & Complex Numbers

Front

What is the standard form of a quadratic equation?

Back

Front

What is the vertex form of a quadratic equation?

Back

Front

How do you find the vertex of a parabola given its equation in standard form?

Back

Front

What is the focus of a parabola?

Back

The focus of a parabola is a point from which distances to points on the parabola are measured. It lies along the axis of symmetry.

Front

What is the directrix of a parabola?

Back

The directrix is a line that is perpendicular to the axis of symmetry of the parabola and is used in conjunction with the focus.

Front

How do you convert a quadratic equation from standard form to vertex form?

Back

To convert, complete the square on the quadratic expression.

Front

What is a perfect square trinomial?

Back

Front

What is the discriminant of a quadratic equation?

Back

Front

What does it mean if the discriminant is positive?

Back

If the discriminant is positive, the quadratic equation has two distinct real roots.

Front

What does it mean if the discriminant is zero?

Back

If the discriminant is zero, the quadratic equation has exactly one real root (a repeated root).