问题标题：
AquestionaboutQuadraticEquation.Question:IntheTVshowJunkyardWars,atrebuchetwasusedtocatapultapumpkinfromaheightof4mforatotlahorizontaldistanceof24m.Itreachedamaximumheightof14m.Atwhathorizontaldistanceswasthe
问题描述：
AquestionaboutQuadraticEquation.
Question:IntheTVshowJunkyardWars,atrebuchetwasusedtocatapultapumpkinfromaheightof4mforatotlahorizontaldistanceof24m.Itreachedamaximumheightof14m.Atwhathorizontaldistanceswastheheightofthepumpkin10m,tothenearestmeter?
Thankyouforsigeur'sanswer.ButIwasjustingrade10,soIdontknowhowtosolveaEQNsystemlike4=a(-m)^2+14and0=a(24-m)^2+14.Sorry.
Anywayelse?
Thankyou!:)
孙艳丰回答：
Fromthequestiongive:1.they-interceptis42.thex-interceptis243.they-coodinateofthevertexis14Weassumethefunctiontobey=a(x-m)^2+14,wherea0give4=a(-m)^2+14and0=a(24-m)^2+14solvea...
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