Posted by CHRIS on .
For which value of x will the fraction 7/2x6 be undefined?
HOW TO DO THIS ?

MATH 
Reiny,
A fraction is undefined if its denominator is zero, so set
2x6 = 0
2x=6
x = 3
So x = 3 makes the fraction undefined. 
MATH 
Todd,
Any fraction is undefined when the denominator is equal to zero.
In this problem the denominator is 2x6.
In order to find what value of x is needed to make the denominator zero, set it equal to x and solve.
2x6=o
2x=6
x=3
Therefore, this fraction is undefined (or has a denominator of zero) when x is equal to 3. 
MATH 
LISa,
thanks