Question 464884: Find all numbers for which the rational expression is undefined. 1/7y+6
Answer by algebrahouse.com(1659)   (Show Source):
You can put this solution on YOUR website! "Find all numbers for which the rational expression is undefined. 1/7y+6"
For an expression to be "undefined", the denominator is equal to 0.
You need to find what value of y makes the denominator 0.
7y + 6 = 0 {set denominator equal to 0, to solve for y}
7y = -6 {subtracted 6 from both sides}
y = -6/7 {divided both sides by 7}
-6/7 makes the rational expression undefined {because the denominator would be 0}
For more help from me, visit: www.algebrahouse.com
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