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Translate graph to an inequality using the variable x. The link:    ...

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smith1767 | Student, Undergraduate | (Level 3) eNoter

Posted March 15, 2013 at 11:01 AM via web

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Translate graph to an inequality using the variable x.


The link:
 
 
http://i48.tinypic.com/2w4mdd1.jpg

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durbanville | High School Teacher | (Level 1) Educator Emeritus

Posted March 15, 2013 at 11:54 AM (Answer #1)

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The graph indicates values between something smaller than 3.2 (but we do not know what) and 3.7. We know therefore that the value of 3.2 may be equal (=) to x (there is a closed in dot beyond it on the way to 3.1). So we know for sure that x>3.1.

We also know that x is either equal(=) to or smaller than (<) 3.7 as indicated by the closed in dot. An open dot would indicate that it does not actually equal the number. 3.2 is within this range so fits within this inequality.   

`therefore 3.1< x <= 3.7`  

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