【初三数学】已知抛物线y=ax^2+bx+c与X轴的交点是A(-1,0),B(3,0),与Y轴的交点是C.若△ABC是直角三角形,则a为多少? 求详细过程
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/12 12:58:35
![【初三数学】已知抛物线y=ax^2+bx+c与X轴的交点是A(-1,0),B(3,0),与Y轴的交点是C.若△ABC是直角三角形,则a为多少? 求详细过程](/uploads/image/z/7215644-20-4.jpg?t=%E3%80%90%E5%88%9D%E4%B8%89%E6%95%B0%E5%AD%A6%E3%80%91%E5%B7%B2%E7%9F%A5%E6%8A%9B%E7%89%A9%E7%BA%BFy%3Dax%5E2%2Bbx%2Bc%E4%B8%8EX%E8%BD%B4%E7%9A%84%E4%BA%A4%E7%82%B9%E6%98%AFA%28-1%2C0%29%2CB%283%2C0%29%2C%E4%B8%8EY%E8%BD%B4%E7%9A%84%E4%BA%A4%E7%82%B9%E6%98%AFC.%E8%8B%A5%E2%96%B3ABC%E6%98%AF%E7%9B%B4%E8%A7%92%E4%B8%89%E8%A7%92%E5%BD%A2%2C%E5%88%99a%E4%B8%BA%E5%A4%9A%E5%B0%91%3F+%E6%B1%82%E8%AF%A6%E7%BB%86%E8%BF%87%E7%A8%8B)
xWNG~"U&^֛!v,UhnR9Ms׀ 7U^̘qm"5jX8ߌ'^F32 kD/KYY;ήO+ȓi6Vޘ5{LzUT=>I5L OB;U1%?i2uAJK?Vy)ۍs&6qS'0NeSӠ>|j&
c
υQ0vT]S>ewGW5/T5߬V\`0,!8_-ַ@-?v!rUE"K]k$ ܑ?q]sp=c"EF,cN||v3c=@$
er}AGbixn7wiBn}}_A| XX!
)>!,קadT)0rߔ #FEt1~z@fkǬmtl@$^A:d+cI&6R/5wl%s9:Ci^>$9RذO?dHS*Ck1+%iҌ4k;X2V!29_vFR%.(Vf\l;6u#Ig
,ui( :3i S>kRrM:M/[Q\ BS\'GEElnX Pnf
͊Qw
xD){~vfvXACf5Y+tBy&iHyxlY,Ulh1aOgכH
ϧnme(1J4KZe&EҞ9"CwyѢ>-%Z]pEhD8K"dHQ>l-l;ɶiۤow*4GN|?9l*<&yBZ.ExO'L2& i1CU]HtaB'MQϽ+(h~1wv?h6TЄ fqs9a'&&TIɣ}Ps0s?0}d␔WpZ9㓮 A8A
i7(}jn-pN4aԯ:q8\\KWeXX>-)ͦQa'LY)
1z/pǀ哼x<w?{Ŏe%] 8=k{*yӞix> +wp
7!"Fu֩lw3c-7{~-O}ÃYA'U_R)̰WdunH |@Y Us5l[(_~6nVjFtYܪ}O(zP`A#*