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Unit 4 (Scatter Plots (Interpolation/Extrapolation (Interpolation is when…
Unit 4
Scatter Plots
Relationships
Plotted points can sometimes be correlated
Line of Best Fit
Drawing a line across a graph showing correlation, going through the majority of points
Negative correlation goes down, positive correlation goes up
X and Y axis must be labelled, along with a title
Interpolation/Extrapolation
Interpolation is when you estimate within results
Extrapolation is when you estimate outside of results
Cartesian Plane
Quadrants
There are 4 quadrants on a graph
II and III are negative quadrants, whereas I and IV are positive
Co-ordinates
Vertical co-ordinates are on the X-axis
Horizontal Co-ordinates are on the Y-axis
The origin is where the x and y co-ordinates start
