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

The equation ax+by+c=0 represents a straight line

The locus of first degree equation in x,y,z is

The equation ax + by + c =0 represents a straight line

State (with reasons), which of the following are true or false : Every second degree equation in x and y represents a circle.

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

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

The equation 16x^(4)-y^(4)=0 represents a pair of straight lines

Which of the following second , degree eqation represented a pair of straight lines ?

Identify , whether the following equation represent a straight line , parabola or circle: x^(2) + y^(2) =16