Slope of tangent at P(3,4)

JEE Advanced medium Year: 2019 Maths
\( For (P(3,4)), find slope of tangent to (x^2+y^2=25). \)
Options
  1. -4/3
  2. -3/4
  3. 3/4
  4. 4/3
Answer
-3/4
Solution
\( Using (xx_1+yy_1=25) → slope (-x_1/y_1). \)