Question

The distance between -7 and 2 on the number line is _____.

a)5
b)9
c)-5
d)10

Answer 1

Answer:

b) 9

Step-by-step explanation:

2 is greater number

hence,

2 - (-7)

= 2+7

= 9

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Answer 2

Concept:

The distance between two points a and b on the number line is the numeric value of the expression (b-a) or the modulus value of it, that is |b-a|.

Given:

The given numbers on the number line are -7 and 2.

Find:

We have to find the distance between the above mentioned given numbers along the number line.

Solution:

Given numbers on the number line is -7 and 2.

So here a = -7 and b = 2.

So the distance between the given points is = |2-(-7)| = |2+7| = 9

Hence 9 units will be the distance between points -7 and 2 on the number line.

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