Provide an Appropriate Response $\lim f ( x ) = 1 , \lim _ { x \rightarrow 7 ^ { + } } f ( x ) = - 1$

question 238

Multiple Choice

Provide an appropriate response.
-If $\lim f ( x ) = 1 , \lim _ { x \rightarrow 7 ^ { + } } f ( x ) = - 1$ , and $f ( x )$ is an even function, which of the following statements are true?
I. $\lim _ { x \rightarrow 1 ^ { - } } f ( x ) = - 1$
II. $\lim _ { x \rightarrow 1 ^ { + } } f ( x ) = - 1$
III. $\lim _ { x \rightarrow 1 } f ( x )$ does not exist.

• A) II and III only
• B) I, II, and III
• C) I and II only
• D) I and III only

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