Find a value for the constant c so that the function
f(x)=\left\lbrace
\begin{array}{ll}
\frac{c}{x- 7} &\mbox{if}\ x< 5\\
3 x-1 &\mbox{if}\ x\ge 5
\end{array}\right.
is continuous at 5 .

c=

Isf then continuous at every real number?

Answer:
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Yes
No

Is

Answer:

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