I can't remember how to find the range of values of a function to save my life!
e.g.
Given that 2x+3y-5=0, find the range of values of x if y<6.
Thanks in advance!
Here you need to be a bit more careful.
Now split the number line into 3 pieces:
(based on where the LHS is 0) and test your inequality on each of these intervals. The intervals that work give you your solution set.
In this case:
:
:
:
So your solution set will be
.
(I have included the end points because of the relation. If this had been a > you would not include these points.)
-Dan