Answer:
Horizontal axis will have number of computers in millions and vertical axis will have advertising dollars in millions.
Given information:
The graph of computer production and advertising amount spent is given in the question.
Total number of computer sell = 40 millions
Cost of internet advertising = $5 million
Now , by looking the graph one can conclude that, Y coordinate of the graph is 40 million and the X coordinate of the graph is $5 million.
Hence, from the above conclusion one can write as:
Horizontal axis (X-axis) is the number of computers and the Vertical axis is (Y-axis) the advertising cost of computers.