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Home > PC3 > Chapter Ch8 > Lesson 8.3.3 > Problem 8-118

8-118.

Write an equation for each graph below.  

Sketch upper boundary, lower boundary, and midlines for each graph to help determine the amplitude and vertical shift.

Determine the horizontal distance between consecutive minimum points to determine the period.
Decide if you are going to write a sine or cosine function, then pick a locator point to determine the horizontal shift.