Scatter graphs are used to represent and compare two sets of data. By looking at a scatter graph, we can see whether there is any connection (correlation) between the two sets of data. Matt sells ...

If you understand the definition of a mathematical function, a good way to judge it is that any line drawn parallel to the y-axis intersects with the values in the function’s curve only once. The same ...

Scatter graphs show the relationship between two sets of data, eg number of tourists and number of tourist facilities or weight and height. A line of best fit, or trend line, can be added to the ...