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Review for Thursday’s Test Complete CW 2.2

November 9, 2015

Schedule for the week:

Grade Trackers out Please:

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Topics for Week Ending Nov. 15th :

Test #1, 2nd Quarter: Thursday, Nov. 12th

|Absolute Value| Expressions & Equations: (4)

Adding/Subtracting Integers: (2)

Order of Operations:(2) Equations/Equation

Applications: (2)

Chart of the Week:

I have no idea

This is easy

Practice Problems Section of

Notebook

3

space

1

2. A 150 mile trip at 60 mph, would take how long?

Test Review:

(n – 3) = -3A. Equations/Applications

B. |Absolute Value| Expressions & Equations - 1|- 10|- 2|𝟐

𝟓|- 10|- 2|

𝟓|- 20𝟓 = 2

n = -21

Know The Rules:|x|= 1

2x = 6; x = 3

2x = -16; x = -8

The two equations are:1. |2x + 5| = 11 2. |2x + 5| = - 11

Test Review/Absolute Value Equations

x = 1, -1Rule: Because the value inside could be positive or negative, two equations must be written and solved.Solve:|2x + 5| = 11

Graphed, the solutions are:Plug back in to check:

Solve:

Solve 53x + 6 =+ 2

Subtract 6 from each side.53x + = 4–

The absolute value of a number is never negative. So, there are no solutions.

9t + 5 = - 3–4

Decide if an equation has any solutionsAre there any solutions?

What’s the next step?

That decision cannot be made until the absolute value is isolated.Continue:

t = 8 t = -9

Last Practice Problem:

3. Write the two equations next

1. Is the absolute value isolated?

4. Solve each equation separately

2. Is the right side positive?

a. b. Use your fraction rules to solve

Today: Work on CW 2.2

Tomorrow: Review Adding/Subtracting

Integers Review Order of Operations CW 2.2 due @ beginning of class