The slope of two parallel lines are the same, and the slope of y = 0x + 4 is 0, so the answer is 0.
Answer is below
I graphed the equations on the graph below.
The slope of y = 4 and y = 5 is 0 because the lines are flat and constant, instead of increasing or decreasing.
graph y = 4 ;slope = 0
line that is parallel has same slope so slope = 0
Slope of the parallel line will be 0.
The given line is:
This equation can be written as:
Now, comparing it with form, we will get:
That means, the slope of the given line is 0.
Now, we know that the slopes of two parallel lines are always equal to each other.
So, the slope of a line that is parallel to will be 0.