Author: Martha Morton

Words that indicate an inequality
Solving an inequality
Treat just like an equation, but when you multiply or divide by a negative,
.
8x < 40 x—5 ≥ 20
-4x ≤ 12 x + 7 > -2
5—x ≥ 10 2x + 7 < -3

Graphing an inequality
1-variable:
Solid dot: Hollow dot:
x > 3 x ≤ -2
-2x < -8 3x—2 ≥ -5
2-variables:
Solid line: Dotted line:
y > 2x—4 y ≤ - 1/2x + 3
SHADED REGION =

TEST A POINT.
If it works,
If it doesn’t work,

TEST A POINT.
If it works,
If it doesn’t work,