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MBA, Ph.D in Management
Harvard university
Feb-1997 - Aug-2003
Professor
Strayer University
Jan-2007 - Present
if 11:] = x3 - 31 + 5, shew that there are values c fer which fie] equals [cl 1:, {b} - 15. and (c) Eflflflrflflfi.
[a] What is the best way to begin the preblem? C) A. chl values ef x1 and x2 fer which fill-1 } = '2! er 113:2): D. D B. Flnd values ef x1 and x2 fer which $11 } S: s fixz} er fire 12 I a fine]. D C. Flnd values ef x1 and x2 fer which fixfisfl sfixfl} er fixflaflafisz}. D D. Flnd values ef x1 and x2 fer which ff)“ } £3 and filial s 3; er f[.1t1 12 a: and fixz} a 51:. Use the trial and errer methed. Begin by finding fl: — 3}.
fl — 3} = D [Simplify yeur answer.)
New find f( — 1]. fl — 1} = D [Simplify yeur answer.) Does a selutien exist between — 3 and — ‘I fer fix] = 11:? D Incenclusive, because f[ —3}-=ED butf{—1]=-fl. D Incenclusive, because 1: does net lie between fl: — 3} and f{ — 1].
D Yes.becausef{—3]-=g:-:f|j—1]. D Yes.becausef{—3]=':|t=-fi—1]. {b} New shew that there is a value c fer which ftc] = — 115.com a selutien exist between — 3 and — 1'?
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