Unit 8 Quadratic Functions: Vocab Test

Front

What is the standard form of a quadratic equation?

Back

y = ax² + bx + c

Front

In a quadratic function, the maximum or minimum refers to:

Back

The highest or lowest point on the graph

Front

Which is an example of a quadratic equation?

Back

y = -x² + 4x + 9

Front

What is the axis of symmetry in a quadratic graph?

Back

A vertical line that divides the parabola evenly

Front

What shape is formed when you graph a quadratic function?

Back

Parabola

Front

What does the coefficient 'a' in a quadratic equation determine?

Back

The direction in which the parabola opens (upward if a > 0, downward if a < 0)

Front

What is the vertex of a parabola?

Back

The highest or lowest point of the parabola, depending on its orientation.

Front

What is the significance of the discriminant in a quadratic equation?

Back

It determines the nature of the roots (real and distinct, real and equal, or complex).

Front

How do you find the x-intercepts of a quadratic function?

Back

By setting y = 0 and solving the quadratic equation.

Front

What is the formula for the vertex of a parabola in standard form?

Back

The vertex can be found at x = -b/(2a).