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A student needs the straight-line length between two plotted points. She uses the:
AInterval notation
BDistance formula
CSlope formula
DMidpoint formula
Answer & Solution
Correct answer: B. Distance formula
1. Length is what is wanted.
2. Squares of the differences are used.
3. It is the distance formula.
_Source: OpenStax College Algebra 2e, Chapter 2, Equations and Inequalities._
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