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312360
Graphs
Description
GCSE Maths Mind Map on Graphs, created by kayleighmegan98 on 29/10/2013.
No tags specified
maths
gcse
graphs
maths
gcse
Mind Map by
kayleighmegan98
, updated more than 1 year ago
More
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Created by
kayleighmegan98
over 10 years ago
909
38
1
Resource summary
Graphs
Algebraic graphs
y=mx+c
m is gradient
c is y intercept
1. Make a table for x and y
2. Plot onto graph
To find equation from graph
1. pick 2 points on line
formula(s)
gradient = difference in y value / difference in x value
gradient = distance up triangle / distance across triangle
2. Put m and c into y=mx+c
Quadratic graphs
Always parabolas
Can be written y = ax2+bx+c
Cubic and reciprocal graphs
y = ax^3+bx^2+cx+d
Where x is the bottom of the fraction
Real life graphs
Distance / time graphs
Distance on y axis
Gradient represents speed
Horizontal = stopped
Sloping up = Going away
Sloping down = Coming back
Steeper the line, faster the speed
Speed / time graphs
Time is always plotted on the x axis
Gradient represents acceleration
Horizontal = Constant speed
Sloping up = Accelerating
Sloping down = Slowing down
Steeper the line, quicker the acceleration
Representing data
Bar charts
Line graphs
Frequency polygons
Cumulative frequency graphs
Scatter diagrams
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