choham so y = ax
a ) xac dinh he so a biet do thi cua ham so di qua A ( 2;3)
b ) ve do thi cua ham so voi a vua tim duoc
c) diem M ( 1005,2010) co thuoc do thi ham so vua tim duoc o tren khong ? Vi sao
cho hai ham so y=f(x)=|2x| va y=g(x)=3
a)ve tren cung mot he truc toa do Oxy do thi cua hai ham so do
b)dung do thi ham so tim cac gia tri cua x sao cho |2x|<3
cho ham so y=(2m^2+m-3)*x. a)ve do thi cua ham so m=2.b) tim m biet do thi ham so di qua A
Cho ham so y = (m-1)x
A. Tim m de do thi ham so tren di qua diem M(-1;2)
B.Voi m tim duoc o cau a. Viet cong thuc ham so tren va ve do thi ham so
Cho biet diem A(m; 2-m) thuoc do thi cua ham so y=2x-1.hay tim m
Biet diem O,A thuoc do thi ham so y=1/2x .Tim toa do M(2,m) de 3 diem O,A,M thang hang
1 cho ham so y=/x//x
a ve do thi ham so
b cm 2diem M(-1;-1)va N(1,1) thuoc do thi ham so
c.Cm 3 diem M,C,N thang hang
Cho ham so y=f(x)=-2x
a, Ve do thi ham so tren mat phang toa do Oxy
b,Tim a biet f(a-4)=6
cho ham so y=(2k+1).x
a/ tim k biet do thi di qua A(-1;1)
b/ ve do thi ham so nay
c/ cho B(xB;-10);C(-5;yC) thuoc do thi tim xB, yC