Identify Which of the Twelve Basic Functions Listed Below Fit $y = \sin x , y = \cos x , y = x , y = x ^ { 3 }$

question 218

Multiple Choice

Identify which of the twelve basic functions listed below fit the description given.
-The four functions whose graphs look the same turned upside down

• A) \(y = \sin x , y = \cos x , y = x , y = x ^ { 3 }\)
• B) \(y = x , y = x ^ { 3 } , y = \frac { 1 } { x } , y = \sin x\)
• C) \(y = x , y = \frac { 1 } { x } , y = \sin x , y = \frac { 1 } { 1 + e ^ { - x } }\)
• D) \(y = x , y = x ^ { 3 } , y = \frac { 1 } { x } , y = \cos x\)

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