共50条信息
直线\(3x+y+1=0\)和直线\(6x+2y+1=0\)的位置关系是( )
“\(m=-1\)”是“直线\(mx+y+1=0\)与直线\(x+my+2=0\)相互平行”的 \((\) \()\)
两平行直线\({{l}_{1}}:3x+4y+6=0,{{l}_{2}}:\left( a+1 \right)x+2ay+1=0\)间的距离为
若两直线\(3\)\(x\)\(+\)\(y\)\(-3=0\)与\(6\)\(x\)\(+\)\(my\)\(+1=0\)平行,则\(m\)\(=\) \(;\)
直线\({l}_{1:}(k-3)x+(4-k)y+1=0,与{l}_{2:}2(k-3)-2y+3=0 \)平行,则\(k\)的值是\((\) \()\)
已知直线\({{l}_{1}}\)的斜率为\(3\),直线\({{l}_{2}}\)经过点\(A(1,2)\),\(B(2,\)\(a\)\()\),若直线\({{l}_{1}}/\!/{{l}_{2}}\),则\(a=\) __________;若\({{l}_{1}}\bot {{l}_{2}}\),则\(a=\) __________;
设直线\(l:x+my+6=0 \)和\({l}_{2}:\left(m-2\right)x+3y+2m=0 \),当\(m= \) 时,\({l}_{1}/\!/{l}_{2} \).
进入组卷