1. 3.) Which is greater 4 • 5 - 3 or 4(5 - 3)
Bellwork
1.) If a = 3, evaluate 2a -5
2.) If t = 7, evaluate t2 + 26
3.) Which is greater • or 4(5 - 3)
4.) Is 23 less than 3(7 - 4)2

2. 1.) If a = 3, evaluate 2a -5 1 2.) If t = 7, evaluate t2 + 26 75
Bellwork
1.) If a = 3, evaluate 2a -5 1
2.) If t = 7, evaluate t2 + 26 75

3. 3.) Which is greater 4 • 5 - 3 or 4(5 - 3) 17 > 8 4 • 5 - 3
Bellwork
3.) Which is greater • or 4(5 - 3)
17 > • 5 - 3
4.) Is 23 less than 3(7 - 4)2
23 < 27 yes

4. To be able to Check solutions of equations and inequalities.
Today’s Objective
To be able to Check solutions of equations and inequalities.

5. Equations and Inequalities
Equation means equal to (=)
Inequality means Not Equal To ( <, >)

6. Guess and Check
Plug-in the numbers from to find the solution to the following equation: 4x - 2 = 10

7. Guess and Check x = 1
4x - 2 = 10
4(1) - 2 = 10
4 - 2 = 10
2 = 10

8. Guess and Check x = 2
4x - 2 = 10
4(2) - 2 = 10
8 - 2 = 10
6 = 10

9. Guess and Check x = 3
4x - 2 = 10
4(3) - 2 = 10
= 10
10 = 10

10. What number plus 2 equals 6?
Mental Math
1.) x + 2 = 6
What number plus 2 equals 6? 4
2.) x - 3 = 4
What number minus 3 equals 4? 7

11. 2 times what number equals 10?
Mental Math
3.) 2x = 10
2 times what number equals 10? 5
4.) x/3 = 1
What number divided by 3 equals 1? 3

12. Inequality Symbols
> Greater Than
< Less Than
> Greater Than or Equal to
< Less Than or Equal to
= Not Equal to

13. Decide if 4 is a solves the following inequalities.
1.) 2x - 1 < 8
2.) x + 4 > 9
3.) x - 3 < 1

14. 1.) 2x - 1 < 8, when x = 4 1.) 2x - 1 < 8 2(4) - 1 < 8
8 - 1 < 8
7 < 8
True

15. 2.) x + 4 > 9 when x = 4 1.) x + 4 > 9 4 + 4 > 9 8 > 9
8 > 9
False

16. 3.) x - 3 < 1 when x = 4 1.) x - 3 < 1 4 - 3 < 1 1 < 1
True

17. Classwork
Do Worksheet 1.5 (1-24)
Homework
Page 30 (9-32all) and (34)