Plot the points p (2,-3) & q (-5,-3) whose ordintes are the same. To which axis the line P Q is parallel. question of class 9 chapter coordinate geometry

To find the inverse of a number a, one can use the equation f(c) = a-1/c=0 where c is the inverse of a use the secant method of finding roots of equations to find the inverse of a = 2.5 ,er = 0.001%