Unit 2 Test Review

Front

What is the general form of a quadratic function?

Back

Front

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

Back

The coefficient 'a' determines the direction of the parabola (upward if a > 0, downward if a < 0) and the width of the graph (wider if |a| < 1, narrower if |a| > 1).

Front

What is a vertical stretch in transformations?

Back

A vertical stretch occurs when the output of a function is multiplied by a factor greater than 1, making the graph taller.

Front

What is a vertical shrink in transformations?

Back

A vertical shrink occurs when the output of a function is multiplied by a factor between 0 and 1, making the graph shorter.

Front

What is a horizontal stretch in transformations?

Back

A horizontal stretch occurs when the input of a function is multiplied by a factor between 0 and 1, making the graph wider.

Front

What is a horizontal shrink in transformations?

Back

A horizontal shrink occurs when the input of a function is multiplied by a factor greater than 1, making the graph narrower.

Front

How do you identify the vertex of a quadratic function in vertex form?

Back

Front

What is the effect of adding a constant to a quadratic function?

Back

Adding a constant to a quadratic function shifts the graph vertically. If the constant is positive, the graph shifts up; if negative, it shifts down.

Front

What is the effect of subtracting a value from the input of a quadratic function?

Back

Subtracting a value from the input shifts the graph horizontally. If you subtract h, the graph shifts to the right by h units.

Front

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

Back