(Section 2.8: Continuity) 2.8.1 SECTION 2.8: CONTINUITYPART A: INTROInformally, a functionfwith domain ±is continuous everywhere (i.e., continuous on ±) ±we can take a pencil and trace out the graph offbetween any two distinct points on the graph without having to lift up our pencil. We must make this idea more precise! PART B: CONTINUITY AT A POINTAssume that ais a real constant; it corresponds to a point on the real number line, usually as the
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