SOLUTION: Find all the numbers which the rational expression is undefined. 4 over 9y+7 This is supposed to be a fraction

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: Find all the numbers which the rational expression is undefined. 4 over 9y+7 This is supposed to be a fraction      Log On


   

Question 332031: Find all the numbers which the rational expression is undefined.
4 over 9y+7
This is supposed to be a fraction
Answer by user_dude2008(1862) About Me  (Show Source):
You can put this solution on YOUR website!
9y+7=0 ---> 9y=-7 ---> y = -7/9

Undefined when