y = 0That's the equation of the x-axis.Its slope is zero.
2/3.
7
5
17/12
1.67 or 1.667
The slope is 5. Parallel lines always have the same slope.
x = -3 represents a vertical line whose slope is undefined.
the slope will be positive 1.5x the whole equation is y=4.5+1.5x
It is: -1/2
-5
1, it will have the same slope but the y intercept will be different.