Two lines are said to be parallel if the slope of the two lines are equal. The equation : \(3y + 2x + 7 = 0\) \(3y = -2x - 7\) \(y = \frac{-2}{3} x - \frac{7}{3}\) \(\frac{\mathrm d y}{\mathrm d x} = - \frac{2}{3}\) All the options have the same slope except 15y + 10x - 13 = 0.