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Algebra 2 Connections Glossary

justify
	To give a logical reason supporting a statement or step in a proof.  More generally to use facts, definitions, rules, and/or previously proven conjectures in an organized sequence to convincingly demonstrate that your claim is valid.  (p. 109)
key point
	An important point on a graph.  Often an x- or y-intercept, a starting or ending point, a maximum or minimum point.  Sometimes a point not on the graph that serves to locate an asymptote.  (p. 9)