The two lines provided in the equations are parallel because they have the same slope but different y-intercepts.
To determine the relationship between two lines, we have to compare their slopes. The slope of a line in the slope-intercept form (y = mx + b) is given by the coefficient 'm' of 'x'. The equations of the lines given are 3y - 2x = -18 and y - 2⁄3x = -9.
Let's first convert both equations to the slope-intercept form (y = mx + b).
For the first equation:
- Multiply both sides by 1/3 to get y on its own: y = 2⁄3x + 6.
For the second equation:
- It is already in slope-intercept form: y = 2⁄3x + 9.
Both lines have the same slope, slope of 2⁄3, but different y-intercepts. Therefore, they are parallel to each other.