Question

If y=xy+(x^2)+1 then when x= -1 (dy/dx) is? Having a bit of trouble solving for the implicit derivative. Thanks :)

Answer 1

do derivative on both sides, solve the equation with y' being the iunknow treat x as known

Answer 2

wait, no! plug x=-1 in first!!

Answer 3

so\[y=-y+2\]

Answer 4

y'=-y',y'=0

Answer 5

Hmm... Can you clarify how you did get the last step? Y'=-y', y'=0

Answer 6

well, if you have A=B+C, A' would be (B+C)'

Answer 7

oh, you mean the last step, sorry, thats just algebra, nothing fancy, add y' on both sides and RHS is 0

Answer 8

Okay i can see that now.

Answer 9

Thank you I know how to solve it now :)