Posted by **Sue** on Saturday, September 12, 2009 at 12:01pm.

If an integer a is pictured on the number line then the distance

from the point on the number line that represents the integer to the origin is ƒaƒ.

Using this idea answer the

following.

a. Explain why ƒa 2 bƒ is the distance between the points that represent the integers a and b.

b. One way to define “less than” for integers is as follows: a , b if and only if a is to the left of b on the number line.

Consequently b . a if and only if b is to the right of a.

Use these ideas to mark on a number line all integers

x such that:

(i) ƒ xƒ , 5 (ii) ƒ xƒ , 1

(iii) ƒ xƒ $ 5 (iv) ƒ xƒ.21

- Number Line -
**bobpursley**, Saturday, September 12, 2009 at 12:23pm
I am uncertain what you need from us.

Draw a number line, starting at zero, marking 1,2,3,4,5,6,7...10

Somewhere put a b above one of the numbers. To the left of b, between zero and b, put an a above a number.

a) The distance from the origin to b is The number at point b. The distance from the origin to a is the number by a.

The question is, how far is it from a to b?

WEll, if we subtract a from b, we get that distance.

b)I don't understand the symbols above. Sorry.

- Number Line -
**Ronald**, Tuesday, October 6, 2015 at 5:04pm
counting on a number line how do you do that

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