What are the key points to trigonometric graphs

The video tutorial explains the graphing of sine and cosine functions, focusing on their positive first periods. It covers the key points of each graph, including maximum and minimum values, intercepts, and the completion of one cycle. The tutorial highlights the differences and similarities between the sine and cosine graphs, providing a clear understanding of their behavior over one period.

What is the maximum value of the sine function in its first positive period?

• 0

• 2

• 1

• -1

At which angle does the sine function return to zero after reaching its maximum in the first period?

• 2π

• π/2

• π

• 3π/2

Where does the cosine function start in its first positive period?

• 2

• 1

• 0

• -1

At which angle does the cosine function reach its minimum value in the first period?

• 2π

• 3π/2

• π

• π/2

What should you look for to understand the key points of a graph?

• Only the minimum points

• Only the maximum points

• Start and end of cycles, maximum, minimum, and intercepts

• Only the intercepts