Derivatives Question
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Let f(x)=|x+2|. Which of the following statements about f are true?
I. f is continuous at x=-2.
II. f is differentiable at x=-2.
III. f has a corner at x=-2.
I. f is continuous at x=-2.
II. f is differentiable at x=-2.
III. f has a corner at x=-2.
- I & II only
- II only
- I & III only
- III only