toan : A(2;3) xac dinh ham so y=ax+b biet do thi cua no di qua diem B(2;-1) va song song duong thang OA
Xac dinh ham so y=ax+b [1] biet do thi cua ham so di qua hai diem A[-1;\(\sqrt{2}\)] va B [2;\(\sqrt{2}\)+3]
xac dinh a va b de do thi cua ham so y=ax+b
a,di qua hai diem A(-1;-20),B(3;8)
xet ham so y=mx+2-m (1) a) ve do thi cua ham so ung voi m=-2;m=3 tren 1 mat phang toa do. tim toa do giao diem cua 2 do thi. b) chung minh rang khi m lay cac gia tri khac nhau thi do thi cua ham so (1) van luon di qua 1 diem co dinh thuoc paraboly=2x^2
xet ham so y=mx+2-m (1)
a) ve do thi cua ham so ung voi m=-2;m=3 tren 1 mat phang toa do. tim toa do giao diem cua 2 do thi.
b) chung minh rang khi m lay cac gia tri khac nhau thi do thi cua ham so (1) van luon di qua 1 diem co dinh thuoc paraboly=2x^2
cho ham so y=ax+b xac dinh a va b de duong thang (d):y=ax+b cat truc tung tai diem co tung do bang -2 va cat do thi (P) noi tren tai diem co hoanh do bang 2
Cho ham so bac nhat y=mx+1
a, Tim mde ham so nghich bien ? Ve do thi ham so voi m=2
b, Tim m de do thi ham so qua M (3;2) . Ve do thi ham so voi m tim duoc
c , Chung to do thi ham so luon qua 1 diem co dinh voi moi gia tri cua m
Cho do thi ham so y=(m-1)x+m+2 cat hai truc toa do tai hai diem A va B phan biet, tim m để diện tích tam giac OAB đạt giá trị nhỏ nhất
Bai 2:(1,0 diem) Cho ham so y = - 2x + 3 (d)
a) Ve do thi (d) cua ham so tren.
b) Tim m de do thi ham so y = (m+ 1)x - 3 song song voi do thi ham so y = - 2x + 3.
help!!!!!