Đề kiểm tra Đại số lớp 7 - Trường THCS Thị Trấn

TRƯỜNG THCS THỊ TRẤN KIỂM TRA MƠN ĐẠI SỐ.
Họ và tên:......................................................... Thời gian :45 phút
 Lớp 7 
Điểm
Lời phê của thầy, cơ giáo
ĐỀ BÀI 
Bài 1:(3đ)Tính số đo các góc của một tam giác biết chúng tỉ lệ với 2; 3; 5.
Bài 2:(4đ) a) Vẽ đồ thị các hàm số y = và y = trên cùng một hệ trục toạ độ.
Bài 3:(3đ) Cho biết y và x tỉ lệ thuận với nhau và khi x = 6 thì y = 4.
	a). Tìm hệ số tỉ lệ k của y đối với x.
	b). Hãy biểu diễn y theo x.
	c). Tính giá trị của y khi x = 9; x = 15
Bài làm
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