After this lesson, the learner should be able to:

• Sketch a cos graph with a positive or negative value that is shifted vertically
• Sketch a cos graph with a positive or negative value that is shifted horizontally 
• Sketch a cos graph with a positive or negative value that is shifted horizontally and vertically
• Identify the transformation that has taken place through the functional notation 
• Identify the five important co-ordinates to sketch a cos graph