Identify Which of the Twelve Basic Functions Listed Below Fit $( - \infty , 0 )$

question 79

Multiple Choice

Identify which of the twelve basic functions listed below fit the description given.
-The four functions that are increasing on the interval $( - \infty , 0 )$

• A) \(y = x , y = x ^ { 3 } , y = x ^ { 2 } , y = e ^ { x }\)
• B) \(y = x , y = x ^ { 3 } , y = e ^ { x } , y = \frac { 1 } { 1 + e ^ { - x } }\)
• C) \(y = x , y = x ^ { 3 } , y = x ^ { 2 } , y = \frac { 1 } { 1 + e ^ { - x } }\)
• D) \(y = x ^ { 3 } , y = \frac { 1 } { x } , y = | x | , y = x\)

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