A coffee shop noticed that the outside temperature affected the number of customers
who came to the shop that day, as shown in the table above. Which of the following
graphs best represents the relationship between the outside temperature and the number
of customers, as indicated by the table?A)
B)
C)
D)
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Notice that the number of customers increases as the temperature increases. The line of best fit will go up
as you follow the graph from left to right, so eliminate (B) and (D). To determine if the correct graph is
the one in (A) or in (C), try roughly plotting the data points, and then look at your graph. Notice that the
number of customers does not increase by the same number for each 10-degree temperature increase. This
is an exponential increase, not a linear increase. So, the graph will be curved. Eliminate (C). Only (A)
fits the data in the chart.