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Section 2 defines the distance formula using Pythagorean theorem. The ?rst three problems are again meant to be quick warm-ups (distances on a number line).
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This resource received a 3* rating because it is part of Algebra 1: Predicting Patterns & Examining Experiments, which received a rating of 3-Exemplary in the Curriki Review System and which you can see here: http://www.curriki.org/xwiki/bin/view/Coll_mathercize/Algebra1PredictingPatternsExaminingExperiments