Which axis the points such as (0,x) (0,y) (0,2) and (0,-5) lie on? Why?

If the points (a, 0) (0, b) and (x, y) are collinear, then

Find the values of k for which the points (2k ,3k),(1,0),(0,1),a n d(0,0) lie on a circle.

Determine whether the points ( -2,1) ,(0,0) and ( -4,-3) lie outside, on or inside the circle x^(2) + y^(2) - 5x + 2y - 5 =0

Where do these following points lie (0, -3), (0, -8), (0, 6) and (0, 4) on coordinate plane?

Show that the four points (6,-7,0),(16,-19,-4),(0,3,-6),(2,-5,10) lie on a same plane.

If the mid-point (x,y) of the line joining (3,4) and (p,7) lie on 2x + 2y+ 1=0 then what will be the value of P ?

The straight lines x+2y-9=0,3x+5y-5=0 , and a x+b y-1=0 are concurrent, if the straight line 35 x-22 y+1=0 passes through the point (a) (a , b) (b) (b ,a) (c) (-a ,-b) (d) none of these

Two charges -q and +q are located at points (0,0,-a) and (0,0,a) respectively. a. What is the electrostatic potential at the points (0,0,z) and (x,y,0)? b. Obtain the dependence of potential on the distance r of a point from the origin which r/a gt gt 1 . c. How much work is done in making a small test charge from the point (5,0,0), (-7,0,0) along the x-axis? Does the answer change if the path of hte test charge between the same points is not along the x-axis?

Three points charges +q,-2q and +q are placed at points (x=0,y=a,z=0),(x=0,y=0,z=0)and (x=a,y=0,z=0) respectively.The magnitude and direction of the electric dipole moment vector of this charge assembly are .