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# Alg1 lesson 6-1 and 6-2

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### Transcript

• 1. Solve, then check your solution.
0
77
0 – 12 > 65
– 12 > 65
Example 1-1a
• 2. Solve and graph
y21
0
21
Example 1-2a
• 3. Solve, then graph the solution.
-9
0
Example 1-3a
• 4. Solve
Seven times a number is greater than six times that number minus two.
Seven timesa number
is greaterthan
six timesthat number
minus
two.
7n
6n
2
>

Example 1-5a
• 5. True or False?
5 > -3
True
Now multiply both sides by 2
5 > -3
2(5) > 2(-3)
10 > -6
True
True or False?
5 > -3
True
Now multiply both sides by -2
5 > -3
-2(5) > -2(-3)
-10 > 6
False
• 6. 5 > -3
2(5) > 2(-3)
5 > -3
-2(5) > -2(-3)
10 > -6
True
-10 6
>
<
False
True
If you multiply or divide both sides of an inequality by a negative number, reverse the inequality sign.
• 7. Solve. Graph the solution
0
36
Example 2-1a
• 8. Solve and graph the solution:
-17
0
Example 2-5a
• 9. Solve and graph the solution
0
5
Example 2-4a
• 10. 6 ÷
6 ·
= -8
Example 2-2a