To see whether or not two lines are parallel, we must compare their slopes. Two lines are parallel if and only if their slopes are equal. The line 2x \u2013 3y = 4 is in standard form. In general, a line in the form Ax + By = C has a slope of \u2013A/B; therefore, the slope of line q must be \u20132/\u20133 = 2/3.