Arental company charges a flat fee of $25 and an additional $0.40 per mile to rent a car. has to be a linear equation.

To make this a linear equation, you would do this:

It starts off already of you spent $25, even with 0 miles, so the y-intercept would be 25.

The slope would be .40x, while x = additional miles.

In the slope intercept form, it would be y = .40x + 25

The graph would be: https://puu.sh/zPyHV/880c02e660.png

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.