<span>Units are used as a standard for measurement of the same quantity. It is a definite magnitude of the quantity that is defined by a convection.
Without them we could not be able to measure things.
All physical quantities have their units, For example: length is measured in meters, weight is measured in kilograms, power is measured in watts,...
With units we can understand "physical" problems and have an exact answer of the problem.</span>
There are 2 fractions you could write, 2/4, which would be 6/12, or 1/4, which would be 3/12
as you can see both are less than 7/12
So use -a/b and you get 6x as the slope and the parallel line would have the same slope
Y=mx+b
m=slope
b=yintercept
given
slope=-1/4
yint=5
y=-1/4x+5
