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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