The lines `x=a` and `y=b` are
(a) intersecting (b) parallel (c) overlapping (d) None of these

If a pair of linear equations in two variables is consistent, then the lines represented by two equations are (a) intersecting (b) parallel (c) always coincident (d) intersecting or coincident

The graphs of the equations 2x+3y-2=0 and x-2y-8=0 lines which are ( a ) coincident (b) parallel(c) intersecting exactly at one point (d) perpendicular to each other

If x and y are co-primes,then their LCM is 1 (b) (x)/(y) (c) xy (d) None of these

The locus of xy+yz=0 is (A) a pair of straighat lines (B) a pair of parallel lines (C) a pair of parallel planes (D) none of these

If A(-1, 0), B(1, 0) and C(3, 0) are three given points, then the locus of point D satisfying the relation DA^2 + DB^2 = 2DC^2 is (A) a straight line parallel to x-axis (B) a striaght line parallel to y-axis (C) a circle (D) none of these

The pair 2x=3y-5 and 2y=5x-4 of linear equations repreisents two lines which are (a) Parallel (b) coincident (c) intersecting (d) either parallel or coincident

The planes x=0 and y=0 (A) are parallel (B) are perpendicular to each other (C) interesect in z-axis (D) none of these

The lines y=mx+b and y=bx+m intersect at the point (m-b,9) .The sum of the x intercepts of the lines is

The figure formed by the lines a x+-y+-c=0 is a. a rectangle b. a square c. a rhombus d. none of these

The locus of a first degree equation in x,y and z is a (A) straighat line (B) plane (C) sphere (D) none of these