Find the equation of locus of 'P' A=(4,0),B(−4,0) and PA−PB=0.
letpointAbe(h,k),thenPA−PB=0PA2=PB2(h−4)2+(k−0)2=(h+4)2+(k−0)2=h2−8h+16=h2+8h+16∴16h=0h=0replacehbyx,wegetx=0