The reason that inclined planes allow us to reduce the force necessary to move items is because the work required to do both (Work = Force x Distance) is the same. When pushing up an inclined plane, the pusher only has to counteract the component of gravity that wants to slide the object back down the plane, instead of fighting against the entire force of gravity. Using an inclined plane decreases the force necessary to accomplish the task but increases the distance required for force against the vertical component.
(An angled plane shortens the distance of travel overall).
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it is a slanted something that's makes lifting things easier by sliding them to where you need them to be.
It works out as 2
Your economy of expression works to obfuscate your meaning, but I think you may be referring to a 'parallel' line.
If you mean points of (4, 5) and (10, 13) then the distance works out as 10
Gravity helps you move down the slope but works against you on the way up.