Question 550543
Perpendicular lines have slopes that are the opposite reciprocal (flip it over and make it negative). 
Is our slope is 6/1 so the new slope will be -1/6 

So far we know
y=(-1/6)x+b 
We can sub in 0 and 4 for x and y and solve for b 
4=(-1/6)*(0)+b
4=b
 
now going back to y=mx+b 
we know that m=(-1/6) and b=4 
y=(-1/6)x+4 is our perpendicular line