Graphs

Description

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

Graphs
  1. Algebraic graphs
    1. y=mx+c
      1. m is gradient
        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
                  3. Quadratic graphs
                    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. Gradient represents speed
                                  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. Gradient represents acceleration
                                            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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