1. Your Name Date Algebra 1B
Instructions: TRUE or FALSE. Justify.
(Hint: True and False = False)
When x = 10 and y = 8 then
X + Y = 18
AND
X – Y = 2
When x = 2 and y = -1 then
3x + 2y = 4
-x + 3y = -5
When x = 23 and y = 15 then
Xy = 345 AND X2 – Y = 9

2. Agenda Notes: 8-1 What’s a System? TRUE or FALSE Example.
Homework: pg. 360 #’s , 32, 33,
Monday
Tuesday
Wednesday
Thursday
Friday
No School
Graphing: X marks the spot.
Which is the better plan?
No Class

3. Objective: IWBAT identify the three different
types of systems of equations and
check their solutions.
Definition: A system is two or more equations
that are related.
Concept :
1) A solution make BOTH equations true.
2) The intersection is the solution.

4. There are three types of systems :
Discuss:
TRUE or FALSE: a system with two linear equations with the same slope and
Different y - intercepts will never have a solution.
TRUE or FALSE: a system with two linear equations with different slopes will always have
A solution.
TRUE or FALSE: a system with one linear equation and a quadratic equation sometimes
Has two solutions.

5. Example: Show that 1, -3 is the solution to the system below.

6. Justify using substitution.
Instructions: Find & Check the solution to the system of equations using the graph below.
Justify using substitution.
Exit Ticket

7. The system below has infinite numbers of solutions
TRUE
FALSE

8. The system below has Infinitely Many solutions.
TRUE
FALSE

9. The system below has No Solutions.
TRUE
FALSE

10. The solution to the system below is (2,2)
TRUE
FALSE

11. Your Name Date Algebra 1B
Instructions:
Calculate your percentage achievement in each standard by
Dividing the numerator by denominator.
Multiply by 100.
Set Operations: Union & Intersection
Estimate and order Real Numbers
Solutions to inequality
One and multi-step inequalities
Two-variable inequalities
Compound inequalities and absolute value
Total
Standard
A1.N.6.
A1.N.4.
A1.P.2.
A1.P.13.
A1.P.15
Points
3/4
2/2
6/8
4/9
2/4
6/9
23/36
Percentage
75%
100%
87%
44%
50%
67%
63%

12. Agenda Test Review 24-hour sale. Stations: .
Station 1: Beating the Average.
Station 2: Standard Tracker
Station 3: Project Entry Slip
Homework: Test Corrections!!

13. 24 Hour SALE!
100 % Possible
Objective: For every student to pass the quiz. Rules: (0) Each correction is worth 100% of original points. (1) The Test must be corrected within 24 hours. (2) The corrections must have a complete sentence explaining the mistake. (3) Ask 3 other teachers, friends, brothers or sisters before me. .

14. Example of Test Corrections
Name
Date
Algebra 1
Unit 6: Test Corrections
4) 3.333… is rational because it can be
Written as the fraction 10/3.

15. Station Expectations Everyone does Everything. Stay Focused
Work Independently (as a group.)
Rotate every 10 minutes.
Station 1: Beating the Average
Station 2: Standard Trackers
Station 3: Portfolio & Entry Slip.

16. Standards Tracker for Unit 6
Watch As You Grow.
Instructions:
Copy the standard onto your standard tracker.
Shade the bar graph to the appropriate standard.
Staple tracker to the front of the test.

17. Beating the Average
Objective: SWBAT calculate the mean of the grades and predict the grade needed for a target grade.
Materials:
How to find the mean:
Sum all the scores(+)
Divide by the number of tests

18. Your Name Date Algebra 1B
Instructions: Answer in complete sentences.
Thursday
Exit Ticket
What was your strongest skill on the test?
Which area will you work the most on?
How will you improve your grade for next unit?
Do Now
Participation
Homework

19. Wednesday TRUE or FALSE
Instructions: Circle the intersection. Substitute the intersection into the equation. Simplify.
TRUE or FALSE
Wednesday
Exit Ticket
Do Now
Participation
Homework

20. Agenda Homework Review (5 min.)
Stations: Review of Systems Definition.
Notes: Solving Systems by Graphing: CLICK
Practice:
Real World Problem
Homework: Pg. 401, #’s 17-22, 35,
Pg. 403, #’s 47, 49, 50.
Monday
Tuesday
Wednesday
Thursday
Friday
No School
Unit 7: Working the System
Graphing: X marks the spot.
Which is the better plan?
GRASP: The Cell Phone Conspiracy

21. Station Expectations. Review: Level 0, #’s 1, 2 & 3
Everyone does Everything.
Stay Focused
Work Independently (as a group.)
Rotate every 10 minutes.
Review: Level 0, #’s 1, 2 & 3

22. Date Algebra 1B Unit 7: Solving by Graphing
Objective: IWBAT solve a system of equations By graphing.
Procedure:
Choose a Method
Lines, Graph
Intersection, Find.
ChecK by substitution.

23. Level 1: Guided Practice
X = 6 Y = -2
6 = 6
-2 = -2
Procedure:
Choose a Method
Lines, Graph
Intersection, Find.
ChecK by substitution.
(6, -2)

24. Level 1: Guided Practice
Y = x - 2 Y = -x + 4
1 = 3- 2
1 =
(3, 1)
Procedure:
Choose a Method
Lines, Graph
Intersection, Find.
ChecK by substitution.

25. Practice on Your Own: #’s 7 - 9

26. Challenge: Can you write the equations for the graph below?

27. a. y = 3x + 4 and y = -5x + 4 b. y = 3x + 5 and y = 3x – 5
Instructions: Label each equations with numbers of solutions.
One Solution
No Solutions
Infinite Solutions
Different Slope
Different Intercept
Same Slope
Different Intercept
Same Intercept
Wednesday
a. y = 3x + 4 and y = -5x + 4
b. y = 3x + 5 and y = 3x – 5
c. y = 2/7 x + 5 and y = 2/7 x – 4

28. Find the intersection and check by substitution.
Thursday
Do Now
Participation
Homework

29. Agenda Homework Review CLICK: Solving by Graphing.
Real Life Problem: DSL vs. FIOS.
Homework: Pg. 402, #’s 23, 25, 29, 36,
Your cell phone – cost per month, cost for overtime minutes, cost per text.
Need to adapt HSA Item for Graphing.
Monday
Tuesday
Wednesday
Thursday
Friday
No School
Unit 7: Working the System
Graphing: X marks the spot.
The Tortoise & The Hare.
GRASP: The Cell Phone Conspiracy

30. Date Algebra 1B Unit 7: Solving by Graphing
Objective: IWBAT solve a system of equations By graphing.
Procedure:
Choose a Method
Lines, Graph
Intersection, Find.
ChecK by substitution.

31. Level 1: Guided Practice
X = 6 Y = -2
6 = 6
-2 = -2
Procedure:
Choose a Method
Lines, Graph
Intersection, Find.
ChecK by substitution.
(6, -2)

32. Level 1: Guided Practice
Y = 1x - 2 Y = -1x + 4
1 = 3- 2
1 =
(3, 1)
Procedure:
Choose a Method
Lines, Graph
Intersection, Find.
ChecK by substitution.

33. Level 2: Guided Practice
3x + y = 6 Y = x + 2
3(1) + 3 = 6
3 = 1 + 2
(1, 3)
Procedure:
Choose a Method
Lines, Graph
Intersection, Find.
ChecK by substitution.

34. Level 2: #7

35. Practice on Your Own: #’s 6 - 9
Procedure:
Choose a Method
Lines, Graph
Intersection, Find.
ChecK by substitution.

36. Real Life Problem: DSL vs. FIOS
When do DSL and FIOS costs the same amount?
DSL
Access DSL costs $8.00 per month plus $3.00 per hour
FIOS
Access DSL costs $13.00 per month plus $2.00 per hour

37. DSL vs. FIOS When is each cheaper?
Time (Hours)
Cost (Dollars)
Access: $ h = c Network: $ h = c
Hours
Cost 4 8 35 30 25 20 15 10 5
Hours
Cost 4 8

38. Challenge: How Many Dinosaurs in the Lake?

39. Challenge: Can you write the equations for the graph below?

40. Instructions: Answer the following questions in full sentences.
Exit Ticket
Starting Amount
Rate
(per)
Time
Money
Instructions: Answer the following questions in full sentences.
Liam's mother promised to donate to the school $4 per mile that Liam walks, plus an additional $30.
If Liam walk 15 miles, how much will his mom donate?
Write a equation describing how much y money Liam’s mom will donate if Liam walks x miles.

41. Cost for Overtime Minutes: Cost per text:
Instructions: Write the following information about your cell phone plan below.
Friday
Monthly Cost:
Number of Minutes:
Cost for Overtime Minutes:
Cost per text:
Exit Ticket
Do Now
Participation
Homework

42. Instructions: Use the model to write equation to describe the situation below.
Starting Cost
Rate
(per)
Time
Cost
Friday
A cell phone plan costs $39.99 a month and $0.45 per overtime minute.
A mechanic costs $150 to fix a car and $60 per hour.
A car costs $3000 down and then $450 per month.
Do Now
Participation
Homework

43. Agenda Homework Review Portfolio Organization.
GRASP: The Cell Phone Conspiracy.
Writing the Equations.
Solving by Substitution (Newbie Level)
Homework: Complete graph & check solution.
Monday
Tuesday
Wednesday
Thursday
Friday
No School
Unit 7: Working the System
Graphing: X marks the spot.
GRASP: The Cell Phone Conspiracy

44. Portfolio Organization (10 min.)
Your Name: Algebra 1:
Unit 1 Test
& Corrections
Unit 2 Test
Unit 3 Test
Unit 4 Test
Final
Exam.
Tri-Triangles
What’s the Best
Deal?
Bungee
Jumping
Conference Tables
Words & Equations
Number Calculations
Can Straight Lines
Curve?
Standard Tracker
Tests
Projects
Tasks
Trackers

45. Standard Tracker & Portfolio Prep
Instructions: Organize your paper into the folders.
Unit 6 Test &
Standards
Tracker
Dirt Bike Project
& Entry Slip.
Tests
Projects
Tasks
Trackers

46. Are you paying too much for your cell phone?
FCC announces that the average American cell phone plan is: $39.99 for 450 minutes with an overtime charge of $0.35 per minute

47. Date Algebra 1B Unit 7: Solving by Substitution
Objective: IWBAT solve systems of equations
by substitution.
Concept:
1)For every problem that you can’t solve,
There’s an easier one that you can. FIND IT.
Procedure:
If A = B and B = C then A = C

48. Date Algebra 1B Unit 7: Solving by Substitution
Example 1: Solve the system below:
y = 2x + 2
y = 3x + 4
2x + 2 = 3x ) Substitute for y.
2 = x ) Solve for x.
-2 = x
y = 2(-2) ) Substitute for x
y = ) Solve for y.

49. Newbie Practice: In your sourcebook Solve for x & y.
y = 2x – 1
y = 3x + 6 B.
Y = 5x + 17
Y = -2x + 3 C.
9 – 3x = y
Y = -3x + 2 D.
Y = 65
Y = x E.
X = 3y
X = 2y + 1 F.
X = y + 3

50. DCBAS on Tuesday for all of 9th Grade & 10th Grade.
Upcoming & Incoming
DCBAS on Tuesday for all of 9th Grade & 10th Grade.
GO GREEN!! GO BLUE!!

51. Your Name Date Algebra 1B
Instructions: Answer in Complete Sentences.
Friday
Exit Ticket:
What is the equation for the average cell phone plan?
What is the equation for your cell phone plan?
Do Now
Participation
Homework