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## Math tutor with 15 years experience - online tutoring available

### Arlington Heights, IL (60004)

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# Alison's Responses in WyzAnt Answers

#### How do I find all points where the following function is discontinuous?

f(x) = 1/(5-(x^2+9)^1/2)((x^2+1)/((1-x)^4))^1/2

+ more- less
Asked by Savannah from Fredericksburg, VA
00

You want to consider where the denominator will equal zero.

There are two pieces to check.

(1-x) = 0               So, x = 1

5-sqrt(x^2+9)=0   Or, x= +-5

Graphing it can also help.

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## Background Check Status for Alison O.

Alison O. passed a background check on 6/22/2012. You may run an updated background check on Alison once you send an email.