A parabola opening up or down has vertex (0,0) and passes through (4,-2). Write its equation in vertex form

C. expression because any expression or equation may contain more than one variable

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.