Write a system of linear equations for the graph below.

We need to determine the equation of both lines first.

Line 1: y = -2x + 3Line 2: y = -1/3x - 2

Now that we know the equations, we can set up a system of equations for this graph where both equations are in standard form.

Line 1:

Line 2:

Final

The major difference is that a histogram is only used to plot the frequency of score occurrences in a continuous data set that has been divided into classes, called bins.  bar charts, on the other hand, can be used for a great deal of other types ofvariables  including  ordinal  andnominal  data sets.