Does this graph represent a function? why or why not?

A). Yes, because it passes the vertical line test.

Step-by-step explanation:

The vertical line test is defined as the method that is employed to ascertain whether a curve displayed in the graph follows a function or not.As per this test, a function must possess only one output 'y' in return for every distinct input, x.Thus, the given graph represents a function because it qualifies the above vertical line test as all the given vertical lines are intersecting the curve atleast once. Hence, option A is the correct answer.

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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.