graphs
- Created by: bio1423
- Created on: 15-06-13 21:11
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- Maths
- Straight line graphs
- Drawing
- 1. choose 3 values of x & draw a table
- 2. Work out y for each x.
- 3. plot coordinates ad join up as a straight line.
- 4. Label the graph
- Graphs when x or y =
- y=a
- horizontal line, all values of y=a
- x=b
- vertical line, all value of x=b
- x+y=k
- k is a number
- sum of x and y equals k
- therefore, k is value of y intercept.
- y=a
- Interpreting y=mc+x
- m = gradient
- As m increases, graph gets steeper
- If m is +, line slopes upwards
- If m is -, line slopes downwards
- Parallel lines have the same gradient
- product of perpendicular gradients = -1
- Perpendicular gradient: 1/m
- C is the intercept, where the graph cuts the y-axis
- Finding gradient
- Change in y divided by change in x
- m = gradient
- Drawing
- Curved graphs
- Graphs involving x3
- y=ax3+bx2+cx+d
- An s shaped graph
- Untitled
- Graphs involving x3
- Straight line graphs
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