Find the equation of the chord of the circle x2+y2=50x^2 + y^2 = 50x2+y2=50 with midpoint (3,4)(3, 4)(3,4).
3x+4y=253x + 4y = 253x+4y=25
3x+4y=503x + 4y = 503x+4y=50
4x−3y=04x - 3y = 04x−3y=0
4x+3y=254x + 3y = 254x+3y=25