Write the equation of the line, in point-slope form. identify the point (-2,-2) as (x1,y1).

I’m not so sure about this one.

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.