Plot the equation with respect to y, so let's re-write the equation in slope intercept form:
6x - 4y = -24
*subtract 6x from both sides, then divide through by -4
-4y = -6x - 24
y = (-6/-4)x + (-24/-4)
y = (3/2)x + 6
In slope intercept form:
y = mx + b
where:
m = slope
b = y-intercept
To answer the question, the line crosses the vertical axis line at 6 units up and has a positive slope where the rise 3 units and the run is 2 units