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

Every first degree equation in x, y represents a straight line.

Theorem :-Every first degree equation in x;y represents a straight line.

If Re((2z+1)/(iz+1))=1 , the the locus of the point representing z in the complex plane is a (A) straight line (B) circle (C) parabola (D) none of these

The equation (x-1)(x-2)=0 in thre dimensional space is represented by (A) a pair of straighat lines (B) a pair of parallel planes (C) a sphere (D) none of these

|z-4|+|z+4|=16 where z is as complex number ,then locus of z is (A) a circle (B) a straight line (C) a parabola (D) none of these

Locus the centre of the variable circle touching |z-4|=1 and the line Re(z)=0 when the two circles on the same side of the line is (A) a parabola (B) an ellipse (C) a hyperbola (D) none of these

The equation of y-axis are (A) x=0,y=0 (B) x=0,z=0 (C) y=0,z=0 (D) none of these

If t and c are two complex numbers such that |t|!=|c|,|t|=1a n dz=(a t+b)/(t-c), z=x+i ydot Locus of z is (where a, b are complex numbers) a. line segment b. straight line c. circle d. none of these

A point (x,y,z) moves parallel to x axis. Which of the three variables x,y,z remains fixed? (A) x and y (B) y and z (C) z and x (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