AnswersMathematics IIDirected Line Segments and Modeling

Directed Line Segments and Modeling — Quiz Answers

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Why is partitioning a directed line segment into a ratio of ratio of 1 to 3 not the same as finding 1 third the length of the directed line segment?

A
The ratio given is part to whole, but fractions compare part to part.
B
The ratio given is part to part. The total number of parts in the whole is 1 plus 3 is equal to 4 .
C
The ratio given is part to part. The total number of parts in the whole is 3 minus 1 is equal to 2 .
D
The ratio given is part to whole, but the associated fraction is 3 over 1 .
4

Point cap p partitions the directed line segment from cap A to cap b into the ratio ratio of 3 to 4 Will cap p be closer to cap A or cap b ? Why? Expand Image

A
cap p will be closer to cap b because it will be 3 sevenths the distance from cap b to cap A .
B
cap p will be closer to cap A because it will be 4 sevenths the distance from cap A to cap b .
C
cap p will be closer to cap A because it will be 3 sevenths the distance from cap A to cap b .
D
cap p will be closer to cap b because it will be 4 sevenths the distance from cap b to cap A .
5

The midpoint of a line segment partitions the line segment into a ratio of

A
ratio of 1 to 1 .
B
ratio of 2 to 3 .
C
ratio of 2 to 1 .
D
ratio of 1 to 2 .
8

On a number line, the directed line segment from cap q to cap s has endpoints cap q at negative 8 and cap s at 12 Point cap r partitions the directed line segment from cap q to cap s in a ratio of 4 to 1 ratio. Which expression correctly uses the formula open paren the fraction with numerator m and denominator m plus n close paren times open paren x sub 2 minus x sub 1 close paren plus x sub 1 to find the location of point cap r ?

A
open paren the fraction with numerator 4 and denominator 4 plus 1 close paren times open paren 12 minus negative 8 close paren plus negative 8
B
open paren the fraction with numerator 4 and denominator 1 plus 4 close paren times open paren negative 8 minus 12 close paren plus 12
C
open paren the fraction with numerator 4 and denominator 4 plus 1 close paren times open paren negative 8 minus 12 close paren plus 12
D
open paren the fraction with numerator 1 and denominator 1 plus 4 close paren times open paren 12 minus negative 8 close paren plus negative 8

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