Question

3. Find the value of k for which the following pair of
equations has no solution: x + 2y = 3
(k - 10x + (k + 1)y = (k + 2)
4. Check whether the following pair of lines equations:
2x + y − 6 = 0 and 4x – 2y – 4 = 0 is consistent. If so,
solve them graphically.
5. Solve the system of equations graphically:
2x – 3y + 6 = 0 and 2x + 3y – 18 = 0. Also, find the
area of the region bounded by these two lines and
y-axis.​

Answer 1

Answer:

It is very important type of question, you should always remember.

for Q. 4. It is given consistent.  when the lines are drawn graphically, if they intersect each other or oincide, then it is called as the case of consistent unless otherwise inconsistent.