Linear Graphs and Equations 1

1
Linear Graphs and Equations (1)

• Understanding Gradient
• Sketching linear graphs
• Identifying graphs

2
Gradient

• Gradient tells us how steep something is.

This child doesnt have a clue about gradient.
3
Gradient
What is the gradient of the line?
Gradient 5/2 or 2.5
4
Gradient
What is the gradient of this line?
This time there is a decrease in y
Gradient -2/4 or -0.5
5
Activity 1

• Time allowed 4 minutes
• Turn to page 6 of your Core 1 book and answer
  question A1

6
Linear graphs
y - intercept
Gradient
7
Activity 2

• Time allowed 4 minutes
• Turn to page 6 of your Core 1 book and answer
  question A2

8
Sketching Linear Graphs
What is y when x is 0?
What is x when y is 0?
We can now use this to get two sets of
coordinates.
9
Sketching Linear Graphs
We know that our line must go through the points
(0,-4) and (2,0)
To draw a sketch of this graph, we just need to
label the important points.
10
Activity 3

• Time allowed Rest of lesson
• Turn to page 6 of your Core 1 book and answer
  question A3, A4, A5, A6. Finish this for homework.