Unit 7 Flashcard: Periodic Data

Front

What is the definition of amplitude in a trigonometric function?

Back

Amplitude is the maximum distance from the midline of the graph to the peak (or trough) of the wave. It is half the distance between the maximum and minimum values.

Front

Back

Front

What is the definition of period in a trigonometric function?

Back

Front

Back

Front

What transformation occurs when the function is multiplied by a factor less than 1?

Back

This results in a vertical shrink of the graph.

Front

What transformation occurs when the function is multiplied by a factor greater than 1?

Back

This results in a vertical stretch of the graph.

Front

Back

Front

Back

Front

How does a negative sign in front of the cosine function affect its graph?

Back

It reflects the graph across the x-axis.

Front

Back