What is the value of the function when x = 2?

x −4 −2 0 2 4
y 3 4 2 6 7

The answer is: " - 4 ".


Note:

  This is the corresponding value for "x = -2" on the table given.

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.