Prior Learning

• Students will be able to solve one-step linear equations.

• Go over homework- ask questions.

• Take a quiz – this is a 3 level quiz.

Lesson QuizSolve each inequality and graph the solutions.

1. X + 4 < 1 x < –3 2. –5x ≥ 30 x ≤ –6

3. x > 20 4. x ≥ 6

OBJECTIVE

• Students will solve and graph linear inequalities involving more than one-step.

• Distribution included. – This is prior knowledge

Solving multi-step inequalitiesis like

solving multi-step equations.If you can solve

1132 xyou can solve

1132 x

1132 x 1132 x3 3

82 x 82 x2 2

4x 4x

3 3

2 2?

?

?

?

The only time it gets trickyis when

the coefficient of xis negative.

2695 x

Then you need to rememberthe rule:

2695 x

Anytime you multiply or divideboth sides of an inequality

2695 x

by a negative number,you need to reverse the sign.

The solution would look likethis:

2695 x9 9

355 x5 5

7x

?

?

Solve this:

3172 x

Is this what you did?

3172 x7 7

242 x2 224x

Try this:

10134

x

Is this what you did?

10134

x

13 13

34

x 434

4

x

12x

Try this:

89110 x

Is this what you did?

1 1

9010 x

9x

89110 x

10 10

One more:

141531 x

3131

3

x

141531 x

Is this what you did?

15 15

131 x

3x

Check For Mastery so far!!!

• TIC TAC TOE with shoulder partner

• Please put both names on paper

• Name that starts closest to A goes first

Real World Connection

• Inequality becomes a way to think

• Limits in life….

So important this becomes a part of your financial literacy in life