Understanding Quadratic Functions

It has an x term.

It has an x squared term.

It has a constant term.

It has a y-intercept.

The point where the parabola intersects the x-axis.

The midpoint of the parabola.

The point where the parabola intersects the y-axis.

The highest or lowest point on the parabola.

A line parallel to the x-axis.

A diagonal line through the vertex.

A vertical line through the vertex.

A horizontal line through the vertex.

(0, 0)

(1, 1)

(-1, -1)

(2, 4)

To ensure the result is negative.

To ensure the result is positive.

To avoid calculator errors.

To simplify the equation.

It shifts upwards.

It shifts downwards.

It becomes narrower.

It becomes wider.

(2, 12)

(0, 0)

(-1, 3)

(1, 3)

It opens to the left.

It opens to the right.

It opens upwards.

It opens downwards.

(2, 0)

(-1, 1)

(1, 1)

(0, 2)

x = 2

x = -1

x = 1

x = 0