a) ve do thi ham so y = x+1 va y= -x+3 tren cung mot mat phang toa do

b) hai duong thang y=x+1 va y= -x+3 cat nhau tai C va cat truc Ox theo thu tu tai A va B. tim toa do cua cac diem A, B, C.

CAC BAN LAM GIUP MINH NHA! 

cho 2 hàm số:y=2x co do thi (d) va ham so y=-2x+4 co do thi(d')

​a,Ve do thi(d) va (d') tren cung mat phang toa do Oxy

​b,goiAla giao diem cua 2 duong thang (d) va (d') .tim toa do diem A

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Ve do do thi cua cac ham so Y = x + 1 va Y = -x+3 tren cung mot mat phang toa do.

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

Cho ham so y= \(\left(m^2-1\right)x+m-4\) co do thi la duong thang (d) va y`= x+2m co do thi la duong thang (d`)

a) Tim m de (d) cat (d`) tai 1 diem nam tren truc tung

Cho do thi ham so y=ax² va diem M{2:2}

a] Tim a biet do thi {P} cua ham so di qua diem M va ve do thi {P}

b] Ve do thi [d] cua ham so : y-2x-2 tren cung mat phang toa do tren. Tim toa do giao diem cua 2 do thi tren bang phuong phap dai so

Cho 2 duong thang d va d' co phuong trinh lan luot la

d:y=ax+a-1

d':y=x+1

Tim cac gia tri cua a de ham so y=ax+a-1 dong bien,nghich bien

Tim gia tri cua a de:d//d'\(d\perp d'\)

2 Voi cac gia tri nao cua m thi do thi ham so y=2x+m-4 cat do thi ham so y=\(\dfrac{1}{4}x^2\) tai 2 diem phan biet

a. ve do thi 2 ham so sau tren cung mot mat phang toa do :

y=1/2x-2 (1) ;y=-2x+3 (2)

b. goi M la giao diem cua hai duong thang (1);(2).tim toa do cua diem M

giaii giup mik nhaa

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