You will be plotting the data on the grid shown below, graphing the number of cell phones on the
x-axis (number of cell phones is the domain and the independent variable). You will be graphing
profit on the y-axis (profit is the range and the dependent variable). Remember that the domain is
the set of all possible values of an independent variable of a function and the range is the set of all
possible values for a dependent variable of a function.
First: Label the n-axis (normally this is the x-axis but we are using n to represent number of cell
phones) and the P-axis (normally this is the y-axis but we are using P to represent profit) of your
grid. Let’s start with the n-axis.
? What is your smallest n-value?
? What should be your smallest n-value on your n-axis? (Make sure that your smallest value
is on the n-axis. You need to have your n-axis go beyond the smallest value.)
? What is your largest n-value?
? What should be your largest n-value on your n-axis? (Make sure that your largest value is
on the n-axis. You need to have your n-axis go beyond the largest value.)
? Label these values on your grid below.
? What is your smallest P-value (Profit value)? Think about this, can your profit be negative?
? What should be your smallest P-value on your graph? (Make sure that your smallest Pvalue is on the P-axis. You need to have your P-axis go beyond the smallest value.)
? What is your largest P-value (Profit value)?
? What should be your largest P-value on your P-axis? (Make sure that your largest value is
on the P-axis. You need to have your P-axis go beyond the largest value.)
? Label these values on your grid below.