浜屾鍑芥暟
鍗曞厓娴嬭瘯棰?/p>
涓�銆侀�夋嫨棰橈細
1
銆佸凡鐭ヤ簩娆″嚱鏁?
鐨勫浘璞′笌
x
杞存湁浜ょ偣锛屽垯
k
鐨勫彇鍊艰寖鍥存槸锛?/p>
锛?/p>
A.
B.
C.
涓?/p>
D.
涓?
2
銆佹姏鐗╃嚎
y=2
锛?/p>
x
锕?/p>
3
锛?/p>
2
鐨勯《鐐瑰湪锛?/p>
锛?/p>
A
锛庣涓�璞￠檺
B
锛庣浜岃薄闄?/p>
C
锛?/p>
x
杞翠笂
D
锛?/p>
y
杞翠笂
3
銆佸嚱鏁?
鐨勯《鐐瑰潗鏍囨槸锛?/p>
锛夛紟
A.(1
锛?/p>
)
B.(
锛?/p>
3)
C.(1
锛?/p>
-2)
D.
锛?/p>
-1
锛?/p>
2
锛?/p>
4
銆?/p>
鎶婃姏鐗╃嚎
y=
锕?/p>
2x
2
+4x+1
鐨勫浘璞″悜宸﹀钩绉?/p>
2
涓崟浣嶏紝
鍐嶅悜涓婂钩绉?/p>
3
涓崟浣嶏紝
鎵�寰楃殑鎶涚墿绾跨殑鍑芥暟鍏崇郴寮忔槸
锛?/p>
锛?/p>
A.y=-2
锛?/p>
x-1
锛?/p>
2
+6
B.y=
锕?/p>
2
锛?/p>
x-1
锛?/p>
2
-6
C.y=-2
锛?/p>
x+1
锛?/p>
2
+6
D.y=-2
锛?/p>
x+1
锛?/p>
2
-6
5
銆?/p>
濡傚浘锛?/p>
姝ｆ柟褰?/p>
ABCD
鐨勮竟闀夸负
5
锛?/p>
鐐?/p>
E
鏄?/p>
AB
涓婁竴鐐癸紝
鐐?/p>
F
鏄?/p>
AD
寤堕暱绾夸笂涓�鐐癸紝
涓?/p>
BE=DF
锛?/p>
鍥涜竟褰?/p>
AEGF
鏄煩褰紝
鍒欑煩褰?/p>
AEGF
鐨勯潰绉?/p>
y
涓?/p>
BE
鐨勯暱
x
涔嬮棿鐨勫嚱鏁板叧绯诲紡涓猴紙
锛?/p>
A
锛?/p>
y=5
锕?/p>
x
B
锛?/p>
y=5
锕?/p>
x
2
C
锛?/p>
y=25
锕?/p>
x D
锛?/p>
y=25
锕?/p>
x
2
6
銆佽嫢浜屾鍑芥暟
鐨勫绉拌酱鏄?/p>
x=3
锛屽垯鍏充簬
x
鐨勬柟绋?/p>
鐨勮В涓猴紙
锛?/p>
A.
=0
锛?/p>
=6
B.
=1
锛?/p>
=7
C.
=1
锛?/p>
=
锛?/p>
7
D.
=
锛?/p>
1
锛?/p>
=7
7
銆佷簩娆″嚱鏁?/p>
y=ax
2
+bx+c
鐨勫浘璞″鍥炬墍绀猴紝鍒欎竴娆″嚱鏁?/p>
y=bx+b
2
锕?/p>
4ac
涓庡弽姣斾緥鍑芥暟
y=
鍦ㄥ悓涓�鍧愭爣绯诲唴鐨?
鍥捐薄澶ц嚧涓猴紙
锛?/p>
A
锛?/p>
B
锛?/p>
C
锛?/p>
D
锛?/p>