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
Tren cung mot he truc toa do ,ve do thi cac ham so sau. Y=2x; y=-2x;y=1/2x
a,ve do thi cac ham so y=\(\frac{-3}{2}\)x va y=\(\frac{2}{3}\)x tren cung 1 he truc toa do
b,tren do thi ham so y=\(\frac{-3}{2}\)x lay diem A co hoanh do la 2.tren do thi ham so y=\(\frac{2}{3}\)x.Lay diem C co hoanh do la 3.do goc AOC,sau do bieu dien diem B tren mat phang toa do sao cho OABC la hinh vuong
Tren cung mot he truc toa do, ve do thi cac ham so sau: y=2x . y=-2x ;y=1/2x
ve tren cung mot truc toa do doothi cua cac ham so
a. y=-x b. y=1/2x c. y=-1/2x
ve do thi ham so sau cung 1 he truc oxy y=3x , y=-2x tinh dien tich tam giac tao boi 2 do thi ham so tren va duong thang y = 3/2
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
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 ham so y=2x
a. tinh f(2);f(-2)
b. ve do thi cua ham so tren