If y is a function of x such that dy/dx = x/y [the derivative of y with respect to x equals x divided by y] and y(3) = 4 [y of three equals four], then which of the following equations is true?
W) x^2 + y^2 = 25 [x squared plus y squared equals twenty-five]
X) y - x = 1 [y minus x equals one]
Y) y^2 - x^2 = 49 [y squared minus x squared equals forty-nine]
Z) y^2 - x^2 = 7 [y squared minus x squared equals seven]
✔️Answer:Z) y^2 – x^2 = 7
🚀
Take Your Prep to the Next Level
Practice with interactive modes, adaptive testing, and detailed stats on our main app.