Question

Can someone please explain to me things like x is less than equal y? And also y > 3. thanks! (linear inequalities in two variables)

Answer 1

Can you give an example of the question your hung up on?

Answer 2

\[x \le y\]
This means that for this to be true, x must be any number smaller than (or equal to) y
For example the statement is true when:
x = 2
y = 4
x is LESS THAN or equal to y.

The statement is also true for:
x=2
y=2

Less than OR equal to.

\[y >3\]

For this statement to be true. y must be any number GREATER then three. You can graph these on number lines using different colours to represent different x/y coordinates.

Take a look at this link :)
http://www.wolframalpha.com/input/?i=y+%3E+3
Hope I helped. :)