Question

x^2+y^2-4x+7y=13
a.)Find dy/dx ?
b) The curve has horizontal tangent line at all points where x =
c) The curve has vertical tangent line at all points where y =

Answer 1

Have you considered finding dy/dx and dx/dy via Implicit Differentiation?

Answer 2

i found dy/dx but can someone help me with b and c

Answer 3

Why don't you provide that sort of information up front?
Please demonstrate what you found and how you found it.