根据下列条件求直线的方程:(1)经过点A(3,2)且与直线4x+y-2=0平行1)经过点A(3,2),且与直线4x+y-2=0平行; 01)经过点A(3,2),且与直线4x+y-2=0平行; (2)经过点C(2,-3),且平行于过两点M(1,2)和N(-1,-5)的直线; (3)经过点B(3,0),且与直线2x+y-5=0垂直.
问题描述:
根据下列条件求直线的方程:(1)经过点A(3,2)且与直线4x+y-2=0平行1)经过点A(3,2),且与直线4x+y-2=0平行; 0
1)经过点A(3,2),且与直线4x+y-2=0平行;
(2)经过点C(2,-3),且平行于过两点M(1,2)和N(-1,-5)的直线;
(3)经过点B(3,0),且与直线2x+y-5=0垂直.
答
1.k=-4
y-2=-4(x-3),y+4x-14=0
2.k=(2+5)/(1+1)=7/2
y+3=7(x-2)/2,2y-7x+20=0
3.k=1/2
y=(x-3)/2,2y-x+3=0