Instructions for Lesson Delivery 1.This is lesson 1 of 2 for Linear equations. 2.Print the last page for all students so they can place them in their whiteboards.

Instructions for Lesson Delivery

1.This is lesson 1 of 2 for Linear equations.

2.Print the last page for all students so they can place them in their whiteboards

3.The independent practice can be downloaded from Mrs. Williams Math page.

Today we will Graph Linear

EquationsGraph = a visual of a set of

ordered pairs on a grid

What is the ordered pair for the points below?

Complete the table

X Y= x +2 Y

0 Y = 0+2 2

1

2

3

y = 2 + 2

3y = 1 + 2

y = 3 + 2

4

5

Linear EquationAn equation for which the

graph is a lineExample:

y = x + 2

Why is this important?

• You can use this to solve real life problems (For example, when you are adding and subtracting from your bank account constantly)

• This will help you with algebra

• You HAVE to know algebra to get into college.

GraphingThree Point Method

1. Choose 3 values for “x” and place them in a table.

x Y = x + 3 y (x , y)

0

1

2

GraphingStep 2

Find solutions using table

x Y = x + 3 y (x , y)

0

1

2

Y = 0 + 3

Y = 1 + 3

Y = 2 + 3

3 (0,3)

4

5

(1,4)

(2,5)

Graphing

Step 3:

Graph the points

from the table

(0,3) (1,4)

(2,5)

Graphing

Step 4:

Draw a line to

connect them

Let’s Tryx Y = x - 4 y (x , y)y = x – 4

1. Choose 3 values for “x” and place them in a table.

2. Find solutions using table

3. Graph the points from the table

4. Draw a line to connect them

5

6

7

y = 5 – 4 1 ( 5, 1)

y = 6 – 4

y = 7 – 4

2

3

( 6, 2)

( 7, 3)

Let’s Tryx Y = 2x y (x , y)y = 2x

1. Choose 3 values for “x” and place them in a table.

2. Find solutions using table

3. Graph the points from the table

4. Draw a line to connect them

0

1

2

y = 2(0) 0 ( 0, 0)

y = 2(1)

y = 2(2)

2

4

( 1, 2)

( 2, 4)

Let’s Tryx Y = x + 5 y (x , y)y = x + 5

1. Choose 3 values for “x” and place them in a table.

2. Find solutions using table

3. Graph the points from the table

4. Draw a line to connect them

1

2

3

y = 1 + 5 6 ( 1, 6)

y = 2 + 5

y = 3 + 5

7

8

( 2, 7)

( 3, 8)

What did you learn?

• What is a linear equation?

• Why is it important?

• Solve and graph y = x - 21. Choose 3 values for “x” and place

them in a table.

2. Find solutions using table

3. Graph the points from the table

4. Draw a line to connect them

x y (x , y)

1. Choose 3 values for “x” and place them in a table.

2. Find solutions using table

3. Graph the points from the table

4. Draw a line to connect them