Graphing a Reflection with a Cosine Functions

The video tutorial explains the concepts of amplitude and period in a cosine graph. It identifies four important points in one cycle and describes how to calculate intervals between these points. The tutorial also covers graphing the cosine function, including reflections, and discusses extending the graph in both positive and negative directions.

What is the formula to calculate the period of a cosine graph?

• 2π/A

• 2π/B

• A/2π

• B/2π

How is the amplitude of a cosine graph defined?

• The distance between two peaks

• The distance between two troughs

• The height from the X-axis

• The width of one cycle

How do you calculate the interval between important points in a cosine graph cycle?

• Multiply the period by 2

• Multiply the period by 4

• Divide the period by 2

• Divide the period by 4

What happens to the cosine graph when it is reflected?

• It shifts to the right

• It shifts to the left

• It crosses the Y-axis at a different point

• It remains unchanged

In which directions can the cosine graph be extended?

• Both to the right and left

• Only to the left

• Only to the right

• Neither direction