Quadratic Key Features

Front

Define Vertex

Back

The highest or lowest point on the graph.

Front

What is the significance of the ordered pair (0, -2) to the graph?

Back

It is the y-intercept.

Front

Which ordered pair could represent a y-intercept on a graph?

Back

(0, 4)

Front

Is this point a max or min? (Assuming the point is the vertex of a parabola)

Back

max

Front

What is the x-intercept of a quadratic function?

Back

The point where the graph intersects the x-axis.

Front

What is the y-intercept of a quadratic function?

Back

The point where the graph intersects the y-axis.

Front

What does the axis of symmetry represent in a parabola?

Back

A vertical line that divides the parabola into two mirror-image halves.

Front

How can you determine if a quadratic function opens upwards or downwards?

Back

By looking at the leading coefficient; if it's positive, it opens upwards, if negative, it opens downwards.

Front

What is the standard form of a quadratic function?

Back

f(x) = ax^2 + bx + c.

Front

What does the 'a' value in a quadratic function affect?

Back

It affects the width and direction of the parabola.