Piecewise Function with a Jump Discontinuity

Question

A function `f` has a jump discontinuity at `x = 1` with `lim_{x -> 1^-} f(x) = 2` and `lim_{x -> 1^+} f(x) = 4`. The function is undefined at `x=1`. Which of the following could be the equation for `f`?

Accepted Answer

$$\begin{cases} 2 & x < 1 \ 4 & x > 1 \end{cases}$$

Answer

$$\begin{cases} 2 & x < 1 \ 4*x - 2 & x \ge 1 \end{cases}$$

Answer

$$\begin{cases} 2*x & x < 1 \ 4 & x > 1 \end{cases}$$

Answer

$$\begin{cases} 2 & x \le 1 \ 4 & x > 1 \end{cases}$$

Rank	User	Correct Count	Attempt Count	Total Time	Score
#1	judithjieunkim	1	1	0m 00s	100
#2	mykolado130106	1	1	1m 59s	-19
#3	jung.seowoo09	0	1	0m 17s	-27
#4	eugenechunggege	0	1	0m 18s	-28
#5	lesleiman	0	1	2m 17s	-147

Piecewise Function with a Jump Discontinuity

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