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Home > A2C > Chapter 8 > Lesson 8.2.1 > Problem 8-120

8-120.

Should y = sin x and y = cos x both be parent graphs, or is one the parent of the other? Give reasons for your decision. Homework Help ✎

Notice that the sine curve could be shifted horizontally to match the cosine curve, or vice-versa.
What is the horizontal shift?