Answer:
The correct option is 1.
Step-by-step explanation:
The given data is
Number of Hours (x): Â 1 Â Â Â 2 5 Â 7 Â Â 9 Â
Total Cost, $ (y) Â Â Â Â : 80 Â Â 110 Â Â 200 260 Â 320
It means the value of x lie from 1 to 9 and the value of y lie from 80 to 320.
In option 1,
[tex]X_{max}=10[/tex]
[tex]Y_{max}=400[/tex]
It means all the given lie in this grid. Therefore option 1 is correct.
In option 2,
[tex]X_{max}=10[/tex]
[tex]Y_{max}=250[/tex]
It means the data 260 and 320 do not lie in this grid. Therefore option 2 is incorrect.
In option 3,
[tex]X_{max}=5[/tex]
[tex]Y_{max}=400[/tex]
It means the data 7 and 9 do not lie in this grid. Therefore option 3 is incorrect.
In option 4,
[tex]X_{max}=400[/tex]
[tex]Y_{max}=10[/tex]
It means the data point do not lie in this grid. Therefore option 4 is incorrect.