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What is the length of DA on the number line?

What is the length of DA on the number line?-example-1

1 Answer

10 votes

Answer:

5

Explanation:

You can find the distance in different ways.

1) Each space between numbers is 1 unit. Count the spaces from D to A.

There are 5 spaces, so the distance is 5.

2) Use the distance formula. The distance between two points on the number line with coordinates a and b is |a - b|. It does not matter in which order you choose a and b.

The coordinate of point A is -3.

The coordinate of D is 2.

distance = |-3 - 2| = |-5| = 5

If you chose the points in the other order, you'd get:

distance = |2 - (-3)| = |2 + 3| = |5| = 5

You still get 5.

Answer: 5

User Rupak Nepali
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