do now: at the top of page 8 in your unit 2c packet ... · day 03 2step inequalities.notebook...
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Day 03 2Step Inequalities.notebook January 12, 2017
January 12, 2017
Aim: SWBAT solve and graph 2-step inequalities with integers.
Do Now: At the top of Page 8 in your Unit 2C Packet
Homework: Pages 10 & 11 in the Unit 2C Packet.
Unit 2C ~ Quiz is Wednesday, January 18th
(Pages 1 - 11 in the Unit 2C Packet)
Day 03 2Step Inequalities.notebook January 12, 2017
Homework Answers: Textbook ~ Pg 151 #12, 14, 16, 18 & 20 AND Page 156 # 3-10, 12, 16, 20, 24, 28 & 29
12) k ≤ 7 14) r ≥ 8 16) w > 5.5
18) p ≥ 3 20) Choice B (x - 3 ≥ 20)
3) No 4) Yes 5) Yes 6) No
7) Choice D 8) Choice C 9) Choice A 10) Choice B
12) m ≤ -42 16) t ≤ 21 20) s ≥ -4 24) t ≤ -6
28) The inequality symbol need to be reversed x ≤ -529) Choice A
Page 151
Page 156
Day 03 2Step Inequalities.notebook January 12, 2017
y ≥ 0 means, all numbers greater than zero including zero
variableinverse
flip
Day 03 2Step Inequalities.notebook January 12, 2017
y ≥ 0 means, all numbers greater than zero including zero
variableopposite
flip
+ 5+ 5
n > 11
2n - 5 > 17
2n > 222 2
110
-2 -2
x + 5 > -40- 5 - 5x > -45
-45 0
2 12 - 5 > 17
Plug in 12
24 - 5 > 1719 > 17√
-44 + 5 -2 < 20
Plug in -44
-39 -2 < 20
19.5 < 20√
Day 03 2Step Inequalities.notebook January 12, 2017
Day 03 2Step Inequalities.notebook January 12, 2017
- 7 - 7
x > 6
5x + 7 > 37
5x > 305 5
60
+ 36 ≥ 51x5 - 36 - 36
x5 ≥ 15 55
x ≥ 75
750
- 0.5 - 0.5
x > -0.6
-2x + 0.5 < 1.7
-2x < 1.2-2 -2
-0.6 0
- 3.25 ≥ 4.62x-5 + 3.25 + 3.25
≥ 7.87 -5-5
x ≤ -39.35
x-5
-39.35 0
+ 9
y ≥ -11
-64 ≤ 5y - 9
5 5
+ 9-55 ≤ 5y
-11 ≤ y
-11 0
3m - 6 > 18+ 6
m > 83 3
+ 63m > 24
80
Day 03 2Step Inequalities.notebook January 12, 2017
Circle True or False for each of the following.
Day 03 2Step Inequalities.notebook January 12, 2017
Day 03 2Step Inequalities.notebook January 12, 2017
A
C
E
F
B
D
44x > -0.6
4x > -2.4
1118x < -4
- 9 16 - 9 1
6
Circle True or False for each of the following.
Day 03 2Step Inequalities.notebook January 12, 2017
-0.7-0.7-0.7x ≥ -35
x ≤ 500
25- x ≤ 10 5
2- 5
2-
x ≥ -25
+ 1.2
x ≤ 1.64
-1.2 + 4x ≤ 5.36
4x ≤ 6.564 4
+ 1.2
1.640
4 + x ≥ 2823
- 4 - 4
x ≥ 36
23 x ≥ 243
2
360
32
- 5 + x < 278
+ 5
34
16
78 + 5 7
834 x < 81
2443
43
x < 101318
101318
0
+ 12.65 > 8.14x-7
- 12.65 - 12.65x-7 > - 4.51-7 -7
x < 31.57
31.570