Answer:
The slope of any line parallel to the given line is 0.8
Explanation:
we have the line
8x-10y=42
Isolate the variable y
Adds 10y both sides
8x-10y+10y=42+10y
8x=42+10y
Subtract 42 both sides
8x-42=10y
Divide by 10 both sides
y=0.8x-4.2
The slope m is equal to
m=0.8
Remember that
If two lines are parallel, then their slopes are the same
therefore
The slope of any line parallel to the given line is 0.8