Kiểm tra 1 tiết
Chia sẻ bởi nguyễn quang huệ |
Ngày 26/04/2019 |
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Chia sẻ tài liệu: Kiểm tra 1 tiết thuộc Đại số 9
Nội dung tài liệu:
PHÒNG GD&ĐT TÂN SƠN
TRƯỜNG THCS TAM THANH
TIẾT 60: KIỂM TRA VIẾT
Môn: Toán 9
Thời gian làm bài: 45 phút
Năm học 2018 - 2019
Phần I: Trắc nghiệm khách quan (4.0 điểm).
Chọn câu trả lời đúng trong các câu trả lời sau (Mỗi câu trả lời đúng được 0.5 điểm)
Câu 1: Phương trình nào sau đây không là phương trình bậc hai một ẩn:
A.
B.
C.
D.
Câu 2: Phương trình: có nghiệm là:
A. và
B. và
C. và
D. và
Câu 3: Khi = 0 hoặc = 0 thì phương trình bậc hai một ẩn:
A. Vô nghiệm
B. Có 2 nghiệm phân biệt
C. Có nghiệm kép
D. Có vô số nghiệm
Câu 4: Hàm số đồng biến khi:
A.
B.
C. Với
D. Cả A, B đúng
Câu 5: Điểm nào sau đây thuộc đồ thị của hàm số :
A. (2; - 2)
B. (4; - 3)
C. (1; 2)
D.
Câu 5’: Phương trình nào sau đây nhận vàlà nghiệm:
A.
B.
C.
D.
Câu 6: Phương trình có tổng và tích các nghiệm là:
A. B. C. D.
Câu 7: Hai số có tổng bằng 8, tích bằng 15 là:
A. – 3 và – 5
B. 3 và 5
C. cả A và B
D. Đáp số khác
Câu 8: Phương trình (với m là tham số) có hai nghiệm phân biệt khi:
A.
B.
C.
D.
Phần II: Tự luận (6.0 điểm).
Câu 9 (3.0 điểm). Giải các phương trình sau:
a) 3x2 + 5x + 2 = 0 b) x2 + 2x + 1 = 0 c) x2 - 4 = 0
Câu 10 (2.0 điểm). Vẽ đồ thị hàm số:
Câu 11 (1.0 điểm). Cho phương trình sau: x2 + 7x - 2 = 0
Không giải phương trình hãy tính: và
BÀI LÀM
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TRƯỜNG THCS TAM THANH
TIẾT 60: KIỂM TRA VIẾT
Môn: Toán 9
Thời gian làm bài: 45 phút
Năm học 2018 - 2019
Phần I: Trắc nghiệm khách quan (4.0 điểm).
Chọn câu trả lời đúng trong các câu trả lời sau (Mỗi câu trả lời đúng được 0.5 điểm)
Câu 1: Phương trình nào sau đây không là phương trình bậc hai một ẩn:
A.
B.
C.
D.
Câu 2: Phương trình: có nghiệm là:
A. và
B. và
C. và
D. và
Câu 3: Khi = 0 hoặc = 0 thì phương trình bậc hai một ẩn:
A. Vô nghiệm
B. Có 2 nghiệm phân biệt
C. Có nghiệm kép
D. Có vô số nghiệm
Câu 4: Hàm số đồng biến khi:
A.
B.
C. Với
D. Cả A, B đúng
Câu 5: Điểm nào sau đây thuộc đồ thị của hàm số :
A. (2; - 2)
B. (4; - 3)
C. (1; 2)
D.
Câu 5’: Phương trình nào sau đây nhận vàlà nghiệm:
A.
B.
C.
D.
Câu 6: Phương trình có tổng và tích các nghiệm là:
A. B. C. D.
Câu 7: Hai số có tổng bằng 8, tích bằng 15 là:
A. – 3 và – 5
B. 3 và 5
C. cả A và B
D. Đáp số khác
Câu 8: Phương trình (với m là tham số) có hai nghiệm phân biệt khi:
A.
B.
C.
D.
Phần II: Tự luận (6.0 điểm).
Câu 9 (3.0 điểm). Giải các phương trình sau:
a) 3x2 + 5x + 2 = 0 b) x2 + 2x + 1 = 0 c) x2 - 4 = 0
Câu 10 (2.0 điểm). Vẽ đồ thị hàm số:
Câu 11 (1.0 điểm). Cho phương trình sau: x2 + 7x - 2 = 0
Không giải phương trình hãy tính: và
BÀI LÀM
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