I hope this is the right forum for this question.

Find the equation(s) of the tangent(s):

(i) from the point (1,0)

(ii) with gradient

(a)

ok for (i) for this equation, i tried differentiating the equation and plugging the values of x and y but i get -2/0 which definitely cannot be the case.

the answer is supposed to be .

All I need would be some pointers, like where i should be looking. Thanks