Adjacent figure is a vertical number line, representing integers. Observe it and locate the following points:

(a) If point D is +8, then which point is -8?

(b) Is point G a negative integer or a positive integer?

(c) Write integers for points B and E.

(d) Which point marked on this number line has the least value?

(e) Arrange all the points in decreasing order of their values.

(a) We know that,

If D is +8 then,

-8 will be a mirror image of D from 0 on the number line.

Hence,

According to the given vertical line,

-8 will be the point F on the number line.

(b) We know that,

The numbers that lie on the line above 0 are positive numbers

And,

The numbers that lie on the line below 0 are negative numbers

Now,

Since,

G lie on the line below 0

Hence,

G (-6) is a negative number.

(c) We can observe that,

Point B lies above the point 0

And,

Is at a distance of 4 units from 0

Hence,

The integer for point B is 4

Now,

Point E lies below the point 0

And,

Is at a distance of 10 units from 0

Hence,

The integer for point E is -10

(d) From the given vertical line,

We can observe that,

E has the least value

Because it represents -10

(e) Viewing the given diagram,

We can conclude that,

The points can be arranged in the decreasing order as follows:

D > C > B > A > O > H > G > F > E