The slope of the line ax + by + c = 0 is `"_______"`.

The slope of the line x=0

If a = 0 , then the line ax + by + c= 0 is parallel to "_______"

If one of the slopes of the pair of the lines ax^(2) + 2 hxy + by^(2) = 0 is n times the other , then

Find the slope and y-intercept of the line : ax - by = 0

If the slope of the line ax+(3-a)y+7=0 is 7, then the value of integral part of a is ........

If the quadrilateral formed by the lines ax + by + c = 0, a'x + b'y + c' = 0, ax + by + c' = 0,a'x + b'y + c = 0 have perpendicular diagonals, then :

The area of the figure formed by the lines ax + by +c = 0, ax - by + c = 0, ax+ by-c = 0 and ax- by - c = 0 is