A computer company produced this graph to show how many computers It expects to sell based on how much the company spends on Internet advertising. The company expects to sell 40 million
computers, spending $5 million on Internet advertising. Which set of units and scales are appropriate
for the two axes?
Horizontal axis: Advertising Dollars (in millions):
Vertical axis: Number of Computers (in millions)
60
50
Horizontal axls: Number of computers (in millions):
Vertical axis: Advertising Dollars (in millions)
40
30
20
10
Horizontal axis: Number of Computers (in millions):
Vertical axis: Advertising Dollars (in tens of millions)
0
1
2 3
5 6
Horizontal axis: Advertising Dollars (in millions):
Vertical axis: Number of computers (in tens of
millions)