Consider the function y = cos x.
a. Write the equation of the image after the function is reflected across the x-axis, shrunk by a vertical scale factor of 1/2, stretched by a horizontal scale factor of 2, and translated up 6 units. Camping at Glacier Point, Yosemite National Park, California
b. What is the period of the image, in radians? What are the amplitude and phase shift?
c. Graph the function and its image on the same graph.