Answer with explanation:
We know that any negative number is always represented to the left of zero on the number line.
In first graph:
The number -3.5 is represented to the right of zero.
It is represented in between 2 and 4.
But we know that -3.5 lie between -4 and -2.
Hence, option: 1 is incorrect.
In second graph:
The number -21/2 is a negative number and lie between -11 and -10
Hence, option: 2 is correct.
In third graph:
The number -7/2 lie between -4 and -3.
But in the graph it is plotted to the left of -4 whereas it should be to the right of -4.
Hence, option: 3 is incorrect.
In fourth graph:
The number 9/2 is equal to 4.5
and it must lie between 4 and 5.
i.e. it should be plotted to the right of 4.
Hence, option: 4 is incorrect.
