At how many points is the signum function sgn x (1 for x > 0, 0 at 0, -1 for x < 0) not continuous?

Continuity & Differentiability · Question 59 of 125

Question 59

EasyOriginal question

At how many points is the signum function $\operatorname{sgn} x$ ( $1$ for $x > 0$ , $0$ at 0, $-1$ for $x < 0$ ) not continuous?

0

Correct answerYour answer

1

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2

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3

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Show the answer and explanation

CorrectNot quiteAnswer B

Correct answer: B

Worth noting

0 forgets the jump at the origin.

Ten questions from Continuity & Differentiability, at your own pace.

Ten questions from Continuity & Differentiability, at your own pace.