Teaching BPSC बिहार माध्यमिक TGT (9 to 10) शिक्षक भर्ती 4.0 Mock Test Mathematics Lines Properties of Lines
If the straights lines 2x - y + 1 = 0, 4x + y + 2 = 0 and x + y - k = 0 are concurrent, then 'k' equals ______
1
\(\frac{1}{2}\)
2
2
3
-2
4
More than one of the above
5
None of the above