Which line is normal to the circle x2+y2=25x^2 + y^2 = 25x2+y2=25 at (3,4)(3, 4)(3,4)?
y=4/3xy = 4/3 xy=4/3x
y=−3/4xy = -3/4 xy=−3/4x
y=−4/3xy = -4/3 xy=−4/3x
y=3/4xy = 3/4 xy=3/4x