Stratton, Inc., has collected the following information on its cost of electricity: Required a. Prepare a scatter-graph

Question:

Stratton, Inc., has collected the following information on its cost of electricity:

Required
a. Prepare a scatter-graph of Stratton's electricity costs for the year. Plot the total electricity cost on the y-axis. Draw a line that you think best represents the electricity cost function. Be sure that the line runs through at least one of the data points.
b. What is the equation of the line you drew in part (a)?
c. What is the expected electricity cost when 750 machine hours are used?
d. Why does your answer to part (c) differ from the actual cost for the month of October, when 750 machine hours were used?