ğc(din)֪R(sh)c(din)(sh)
(do)Z:ϣһwǣڲסĹâeڽ죬ƽһ(g)һ(g)(mng)f˵ԸС(sh)W(xu)֪R(sh)c(din)ϣ(du),gӭxHP(gun)֪R(sh)Ո(qng)P(gun)עCNFLAW(xu)(x)W(wng)!
(sh)ʽķ:
ϵ(sh)O(sh)(sh)ʽٸ(j)l_ʽδ֪ϵ(sh)Ķw@(g)ʽӵķ
1. һκ(sh)cһԪһη̣“(sh)”ĽǶȿxֵr(sh)(sh)y= ax+bֵ0.
2. ax+b=0(a, bdz(sh)a≠0)Ľ“”ĽǶȿֱy= ax+bc x Sc(din)ęM(bio)
3. һκ(sh)cһԪһβʽ
ⲻʽax+b>0(abdz(sh)a≠0) .“(sh)”ĽǶȿxֵr(sh)(sh)y= ax+bֵ0.
4. ⲻʽax+b>0(abdz(sh)a≠0) . “”ĽǶȿֱy= ax+b x SϷIJ(侀)(du)(yng)ĵęM(bio)ȡֵ.
(sh)|(zh)
|(zh):(dng)k>0r(sh),ֱy= kx(jng)^һSxyҲ;
(dng)k<0r(sh),ֱy= kx(jng)^,ޣ½S xypС
(sh)D
D:(sh)y= kx (k dz(sh)k≠0)) ĈDǽ(jng)^ԭc(din)һlֱ҂Qֱy= kx
ͨ^挦(du)(sh)DČW(xu)(x)ͬW(xu)(du)֪R(sh)ѽ(jng)ܺܺõ˰ɣ҂M(jn)и֪R(sh)c(din)ČW(xu)(x)
ğc(din)֪R(sh)c(din)(sh)P(gun)£
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