TODAY IN ALGEBRA…

Warm Up: Solving one-step equations

Learning Goal: 6.1 You will solve Inequalities using Addition and Subtraction

STATs for Final

Independent Practice

WARM UP:Solve for x for the one-step equations.

1. 2.

3. 4.

5.

4 ∙ ∙4

Undo addition with:SUBTRACTION

Undo subtraction with:ADDITION

Undo multiplication with:DIVISION

Undo division with:MULTIPLICATION

Undo a fraction with:RECIPROCAL

6.1 GRAPHING INEQUALITIES

¿

≤¿

≥

LESS THAN

GREATER THAN

LESS THAN OR EQUAL TO

GREATER THAN OR EQUAL TO

𝑥<2 2>𝑥

𝑥>−3−3<𝑥

𝑥≤0 0≥ 𝑥

𝑥≥−1−1≤ 𝑥

open dot, arrow points left

open dot, arrow points right

closed dot, arrow points left

closed dot, arrow points right

6.1 GRAPHING LINEAR INEQUALITESPRACTICE: Write the following inequalities using words.1.

2.

PRACTICE: Write an expression for the following inequalities:3.

4.

PRACTICE: Graph the following inequalities:1.

2.

3.

4.

v is greater than t

r plus 2 is less than or equal to 5

𝑐 ≥−5

h−4<3

−5

6

−1

0

−7 −3

4 8

−3 1

−2 2

EXAMPLE 1: Add 12 to both sides of equal sign

Add 3 and 12

GRAPH:

TRY ON YOUR OWN:1. 2.

6.1 SOLVING ONE-STEP INEQUALITIES: USING ADDITION

KEEP YOUR EQUATION ALIGNED!

1514131211 161718

1210 14 −2−4 0

Open dot, arrow points right

Open dot, arrow points left Closed dot, arrow points right

EXAMPLE 1: Subtract 7 from both sides of equal signs

Add 4 and -7

GRAPH:

TRY ON YOUR OWN:1. 2.

6.1 SOLVING ONE-STEP INEQUALITIES: USING SUBTRACTION

KEEP YOUR EQUATION ALIGNED!

−3−5−7 −10

−7−9 −5 64 8

Closed dot, arrow points left

Open dot, arrow points right Closed dot, arrow points right

HOMEWORK #1:

Pg. 359: 1-9, 10-22 even, 24-26, 28, 31

HOW DID YOU “SHAPE” UP??Results for ALL of my Algebra classes:

GRADE NUMBER OF STUDENTS WHO TOOK THE FINAL (90 pts)

1ST PERIOD 6TH PERIOD TOTAL

A/A- 3 0 3

B+/B/B- 4 2 6

C+/C/C- 10 5 15

D+/D 3 10 13

F 8 13 21

Average 60.86 52.80 56.83