Graphs

Description

GCSE Maths Mind Map on Graphs, created by kayleighmegan98 on 29/10/2013.
Mind Map by kayleighmegan98, updated more than 1 year ago
 Created by kayleighmegan98 over 10 years ago
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Resource summary

Graphs
1. Algebraic graphs
1. y=mx+c
1. c is y intercept
2. 1. Make a table for x and y
1. 2. Plot onto graph
1. To find equation from graph
1. 1. pick 2 points on line
1. formula(s)
1. gradient = difference in y value / difference in x value
1. gradient = distance up triangle / distance across triangle
2. 2. Put m and c into y=mx+c
1. Always parabolas
1. Can be written y = ax2+bx+c
2. Cubic and reciprocal graphs
1. y = ax^3+bx^2+cx+d
1. Where x is the bottom of the fraction
2. Real life graphs
1. Distance / time graphs
1. Distance on y axis
1. Horizontal = stopped
1. Sloping up = Going away
1. Sloping down = Coming back
1. Steeper the line, faster the speed
2. Speed / time graphs
1. Time is always plotted on the x axis
1. Horizontal = Constant speed
1. Sloping up = Accelerating
1. Sloping down = Slowing down
1. Steeper the line, quicker the acceleration
2. Representing data
1. Bar charts
1. Line graphs
1. Frequency polygons
1. Cumulative frequency graphs
1. Scatter diagrams

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