Embedded Files
Patterns
Patterns
Co-ordinates
Co-ordinates
Graphing points using a table
Graphing points using a table
Y-intercept
Y-intercept
The y-intercept is where the line crosses (intersects) the y-axis
The y-intercept is where the line crosses (intersects) the y-axis
Y-intercept is 3
Y-intercept is 3
Y-intercept is 6
Y-intercept is 6
Y-intercept is -3
Y-intercept is -3
Y-intercept is -1
Y-intercept is -1
Gradient
Gradient
Gradient is represented by the letter 'm'
Gradient is represented by the letter 'm'
Mark two points on the graph where it crosses nicely on the grid lines.
Between the two points find the change in rise (up/down) and run (to the right)
It is calculated as follows:
It is calculated as follows:
Graph using gradient & y-intercept
Graph using gradient & y-intercept
When graphing equations you need to use both the y-intercept and the gradient
Use the y-intercept (number not attached to x), as this tells you where the line starts on the y-axis.
The gradient tells you how much you need to rise each time you go across one.
Change of scale
Change of scale
Distance time graphs
Distance time graphs
Horizontal (flat) lines mean the person/object is not moving for that time.
Horizontal (flat) lines mean the person/object is not moving for that time.
A diagonal line means someone is moving at a constant speed. The steeper the line the faster the speed they are moving.
A diagonal line means someone is moving at a constant speed. The steeper the line the faster the speed they are moving.
Practice Questions:
Practice Questions:
How long after Billy started running towards the park did he become tired, and begin walking?
After leaving home, how long did it take to arrive at the park?
At what speed did he run to the park?
How long did he spend at the park?
How quickly did Billy run home?
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