1138 words - 5 pages

Part A

Getting started with Geogebra

Step 1

Download GeoGebra program from the Mathematics group from the Self Service App onto your ipad.

Step 2

Open Geogebra – you should get a screen on your Ipad that looks like this:

Step 3

Click on ‘Create your own’ Algebra file.

Step 4

Click on the MENU button on the top right hand side of the screen and click on ‘Save’.

NOTE: If you have not used GeoGebra before, you will need to create an account. Use your school email and password to create an account.

Step 5

Save this current file as ‘Linear Equations Task 1’.

Step 6

Close Geogebra.

Step 7

Open Geogebra again and Click on the MENU button on the top right hand side of the screen and click on ‘Open’.

Step 8

Click on the file ‘Linear Equations Task 1’ and choose Edit. Your previous file should open.

Show your teacher this OPENING screen before moving on.

Part B

Working in Geogebra

Task 1

Go to the INPUT line on the left hand side of the screen.

Input all 3 functions below on the same graph.

a.

b.

c.

Show your teacher the 3 graphs and the input line screen before moving on.

Once your teacher has seen your screen with these 3 graphs, save the file again as ‘Linear Equations Task 1’

Screenshot this with the 3 graphs and input lines showing and paste this screenshot in this document in the relevant section.

Answer the following questions:

1. Describe what happens to the graphs as you increased the value in front of ‘’ (this is called the coefficient of ). As the coefficient of X increases, the graph becomes more vertical

2. Predict and describe what the graph of would like when compared to the 3 graphs you have just graphed. The graph of y = 10 would be much closer to vertical to the three other graphs

3. Write a sentence that describes what happens as the coefficient of x increases. When the coefficient of X increases, the gradient will increase

Task 2

Create a new Algebra File on Geogebra.

Go to the input line on the left hand side of the screen.

Input all 3 functions below on the same graph.

NOTE: You need to enter the fractions in the input using the division button.

a.

b.

c.

Show your teacher the 3 graphs and the input line screen before moving on.

Once your teacher has seen your screen with these 3 graphs, save the file as ‘Linear Equations Task 2’

Screenshot this with the 3 graphs and input lines showing and paste this screenshot in this document in the relevant section.

Answer the following questions:

1. Describe what happens to the graphs when the coefficient of ‘’ lies between 0 and 1.

When the coefficient is between 1 and , the graph would be the exact same amount of vertical and horizontal on both quadrants

2. Predict and describe what the graph of would like when compared to the 3 graphs you have just graphed.

If y=1 over 10 X then the gradient will decrease a lot

3. Write a sentence that describes what happens when the coefficient of ‘’ lies between 0 and 1

When the coefficient is between 1 and , the graph would be the exact same...

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