Bộ đề kiểm tra toán 9(Cả năm)-Đại số

Trờng thcs thăng bình

Bài kiểm tra 15 phút
Môn : Toán 9 - Chơng I
Thời gian: .... phút
Họ và tên:Lớp:9......
Điểm
Lời phê của thầy cô giáo
Đề bài:
I.Trắc nghiệm:
Câu 1 (4điểm). Điền đúng(Đ)- sai(S) vào ô trống trong các câu sau đây:
a,
2 1x

xác định khi và chỉ khi
1
2
x
b,
2
2 1x
+
xác định với mọi x

R
c,
2
( 48 7) 7 48
=

d,

8 : 2 4
=
II.Tự luận:
Câu 2 (3 điểm). Tính:
a,
2 4
1
4 ( 0, 0)a b a b
a
>

b,
72.24
c,
3
147

Câu 3 (3 điểm). Rút gọn:
a,
3 6 2 5 3 5
+
b,
2
4 4
3
2
x x
x
x
+

( Với x<2 )
Bài làm
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Bài kiểm tra 1 tiết
Môn : Toán 9 - Chơng I
Thời gian: .... phút
Họ và tên:Lớp:9......
Điểm
Lời phê của thầy cô giáo
Đề bài:
I.Trắc nghiệm:
Câu 1 (2 đ). Khoanh tròn vào đáp án đúng cho những câu sau:
1, CBHSH của 49 là:
A. 7; B. -7; C.

7.
2, ĐKXĐ của
2 3x

là:
A.
2
3
x

; B.
2
3
x

; C.
2
3
x

; D.
2
3
x

.
3, Phơng trình
2
7 0x
=

có nghiệm là:
A. x=7; B. x=-7; C.
7x
=
; D.
7x
=
.
4, Giá trị biểu thức:
( )
2
7 50

là:
A.
7 50

; B.
50 7

.
II.Tự luận:
Câu 2(4đ). Tính:
1,
2 3 27

2, (
7 3 2

)(

2 7 3
+
)

3,
4
2 2
( 4)
. ( 0; 4)
( 4)
b a
b a
a b

>

4,
(4 12 108) : 2 3 9
+
Câu3(3đ). Cho biểu thức:
1
1 1 : ( 0; 1)
1 1 1
y y y y y
Q y y
y y y

+
= +
ữ ữ

ữ ữ
+ +

1, Rút gọn biểu thức Q.
2, Tìm giá trị nhỏ nhất của biểu thức Q.
C©u 4(1®). Gi¶i ph¬ng tr×nh:
2 2
2 2 2 10 4x x x x
− + + − + =

Bµi lµm
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Bài kiểm tra 1 tiết
Môn : Toán 9 - Chơng II
Thời gian: .... phút
Họ và tên:Lớp:9......
Điểm
Lời phê của thầy cô giáo
Đề bài:
I.Trắc nghiệm:
Cõu 1: ng th ng i i m A (1;3) song song v i ng th ng y = -3x
+2 l:
A. y = - 3x 6 B. y = -3x C. y = -3x + 6
D. y = 3x + 6

Cõu 2: i m thu c th hỏm s y = 2x 5 l:
A. (-2; -1) B. ( 3; 2) C. ( 1; -3)
D. ( -1; 7 )
Cõu 3: Trong cỏc hm s sau hm s no khụng ph i l hm s b c nh t
A. y = 3x 5 B. y = - 2x C. y =
3
1 x

D. y =
2
( x
1
2
)
Cõu 4: Cho hm s y = kx + 3 v hm s y = - 2 x 1. th c a hai hm
s l hai ng th ng song song khi k b ng:
A. 2 B. 0 C. 1
D. 2
Cõu 5: Cho hm s y = (2 m) x + m 1 l hm s b c nh t khi m khỏc:
A. -1 B. 2 C. 0
D. 1
Cõu 6: th hm s y =
1
2
x
+
i qua i m cú t a l:
A. ( 2 ; 0) B. (-1;
1
2

) C. ( -2 ; 1) D.
( -2 ; -1)
Cõu 7: Trong cỏc hm s sau hm s no ng bi n
A. y = 5 x B. y =
2

3
( 3 x ) C. y =
1
3
x 2 D. y
= 3 2 ( x 1 )
Cõu 8: Hm s y = 2x + m 2 . Xỏc nh giỏ tr c a m th hm s
i qua i m A (0; 4) l:
A. m = 0 B. m = 2 C. m = 4
D. m = 6
II.Tự luận: