Classify each representation shown below as either linear or exponential. x y 0 5 1 7.5 2 11.25 y = 2x + 4 one person sends an email to 2 people. those 2 people send it to 4 people, and those 4 send it to 8 people.

Y=2x+4 is linear but the email thing is exponential

I think one is exponential two is linear and three is exponential

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.