How do you decide whether the relation #xy+7y=7# defines a function?
1 Answer
Nov 9, 2015
You can rearrange the expression to find that
Explanation:
#7 = xy + 7y = (x+7)y#
Notice that if
If
#7/(x+7) = y#
That is:
#y = 7/(x+7)#
This uniquely determines the value of