Suppose x and y are both differentiable functions of t and x^2 + 3xy - y^2 = 9 Find (dy/dt) when x=2 given (dx/dt)= -1

for this case we must apply distributive property to the following expression:

the distributive property states that:

then, when applying the property we have to multiply the -2 for each term within the parenthesis:

the answer is c. ⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀

b. is true. hope this . happy