Question

CHAPTER - 3
Pair of Linear Equations in Two variables)
Multiple Choice Questions: (Tick the correct answer for each of the following).
1. Consistent solutions means.
(a) no solution
(b) unique solution
(c) infinitely many solutions
(d) both ( b) and(c)
2.
Lines represented by equations x = a and y = b are:
(a) perpendicular to each other (b) intersects at a point where x=a &
y=b
(b) parallel to each other
(d) has no solution.
3.
Value of k for which system of equations: kx + 2y = 3 and 2x + ky = 7 has a unique
solution cannot be equal to:
(a) 2
(b) -2.
(c) both a &b
(d) no such value exists
4.
A number when added to its reciprocal result becomes double of the number then
number is
(a) 3
(b) 2.
(c) 1
(d) -1
5.
Lines represented by equations x = y and x = -y are:
(a) passing through origin
(b) parallel to each other
(c) perpendicular to each other (d) coincident lines
6.
Possible values of k for which system 2x – 7y = k and 3x + 2y = 5 has unique
solution:
(a) 2
(b) 3
(c) 4
(d) no such value of k exist
A number when added to its square, result is double of square of number then
possible numbers are:
(a) 0
(b) -1
(c) 2.
(d) 1
7.
8.
Graph of equation represented by x + 3 = 0 is
(a) perpendicular to y-axis
(b) perpendicular to x-axis
(c) Parallel to y-axis
(d) parallel to x-axis​

Answer 1

Answer:

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