Hi, can I please have some help with these 3 questions?

Find the slope of the tangent to the curve x2 + 34xy + y2 = 36 at (1, 1) The slope is (Enter undef if the slope is not defined at this point.) Select a blank to input an answer SAVE Consider the curve xIn(y) ly - 9ln(x). Find . in terms of x and y. dy da Select a blank to input an answer SAVE Find the tangent line approximation for y = \\7 -| x near x - 6