Solving One-step Inequalities

Inequalities

• Inequalities are similar to equations when solving. You can add, subtract, multiply or divide any amount to either side as long as you do it to both sides.

4 6 8 10 12 14 16 18 20

Solve x - 6 < 10 and graph the solution.

The point 16 in not included. The circle is open.

BACK

BACK

2 3 4 5 6 7 8 9 10BACK

2 3 4 5 6 7 8 9 10

Write an inequality for the graph.

Closed dot means the number 4 is included.

x 4

BACK

-3 -2 -1 0 1 2 3 4 5BACK

-9 -8 -7 -6 -5 -4 -3 -2 -1BACK

-6 -5 -4 -3 -2 -1 0 1 2BACK

When you multiply or divide each side of an inequality by a negative integer, you must reverse the order symbol.

Warning!!!

BACK

-6 -5 -4 -3 -2 -1 0 1 2BACK

Do you change the sign if you multiply or divide by a positive number while solving?

NO!!!!BACK

Do you change the sign?

No

No

YesBACK

1

11

1

1

1

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Solving One-step Inequalities