are the expressions where any two values are compared by the inequality symbols such as, '<', '>', '≤' or '≥'

a polynomial equation of the first degree that gives a straight line when plotted on a graph.

is an equation of the second degree, meaning it contains at least one term that is squared.

A linear inequality divides the coordinate plane into two halves by a boundary line where one half represents the solutions of the inequality.

$<$

$>$

$=$

$\ne$

$<$

$>$

$=$

$\le$

$=$

$<$

$>$

$\ge$

5x−y≤10

3x + 5y = 20

3x – 2y = 4

7x−3<21

3x−5y≥−15

5x + 3 = 15

3x + 2x = 12

4x + 5y = 20

10x + 20y = 50

2y + 7 > 3x

2 – 3x ≤ 3y

x + y = 8

Diagonal Line

Straight Line

plane

circle

not equal to

equal

less than

greater than