5x = -y + 6 solve for y

-5y + 10x = 5 solve for y

6y = -3x + 12 solve for y
​

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.