Please enable JavaScript.

Coggle requires JavaScript to display documents.

Math revision (Statistics (Mean (Sum of all data/how many their are),…

- - - - Use the rule to answer questions about the scenario
      - Draw a graph of the rule
    - - Identify a variable as being explanatory or response
      - Graph a scatterplot, both by hand and on the CAS calculator
        
        Use the graph to make predictions about values of the response variable (y variable)
    - - Drawing conclusions from within the graph. Generally reliable conclusions can be drawn because the information is being taken from inside the known data. It is known that the graph follows the line shown, through the variables shown.
    - - Only useful when we know the line continues in a straight line. Eg at a steady pace, continuing at the same average speed.
        The more spread the data the less reliable interpolation and extrapolation will be.
  - - - Plotting coordinates from a table of values
      - Create an algebraic equation representing the relationship
    - - find the x and y-intercept from a linear graph
      - identify gradient of a graph as positive or negative, undefined or zero
      - Determine the gradient of a straight line by using gradient=rise/run and gradient=(y_2−y_1)/(x_2−x_1 )