Graphs of two trigonometric functions are shown below 2 3 6

Graphs of two trigonometric functions are shown below. 2 3 6 8 3 2 Part I: What is the period of the solid graph? (2 points) Part II: What is the period of the dotted graph? (2 points) Part III: The solid graph is the graph of one of the six main trigonometric functions. Which of the six is it? How do you know this? (4 points) Part IV: The dotted graph is a transformation of the solid graph. It shows a vertical stretch and a horizontal stretch. What is the vertical stretch factor of the dotted graph? (2 points)

Solution

(1) PI

(2) Pi

(3)Solid graph is of function y=secx

(4)