The lines and are |
|||
a) |
Concurrent for three values of |
b) |
Concurrent for one value of |
c) |
Concurrent for no value of |
d) |
Are parallel for |
The lines and are |
|||
a) |
Concurrent for three values of |
b) |
Concurrent for one value of |
c) |
Concurrent for no value of |
d) |
Are parallel for |
(c,d)
If lines and are concurrent, then
but has no real roots. If , then two lines are parallel