Which of the following lines is perpendicular to the line y=2x+3y = 2x + 3y=2x+3?
y=2x−5y = 2x - 5y=2x−5
y=−2x+3y = -2x + 3y=−2x+3
y=−12x+1y = -\frac{1}{2}x + 1y=−21x+1
2y=x+42y = x + 42y=x+4