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McGraw Hill Integrated II, 2012

MH

McGraw Hill Integrated II, 2012 View details

2. Probability with Permutations and Combinations

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Exercise 40 Page 898

The Ruler Postulate is used to find the distance between points on a segment.

1

Practice makes perfect

To find the length of EF, let's consider the given number line.

According to the Ruler Postulate, the distance between two points is the absolute value of the difference between their coordinates. Let e and f represent the coordinates of E and F respectively.

EF=|e-f|

e= 4, f= 5

EF=| 4- 5|

Subtract terms

EF=|- 1|

|-1|=1

EF=1

The length of EF is 1 unit.

Subchapter links

Exercises p.895-898