Reduce the effort needed to move a load vertically. An incline decreases the amount of work you need to put in to lift a load. If you lifted the load directly up, you would need to put in enough energy to counter the whole weight of the load. If you push the load up an incline, however, your horizontal force will only need to counter the x-component of gravity's force, which is smaller in magnitude, so it takes less effort to push the load up a slope.
No one of them does not have to be a diameter. I'm not sure how to explain it , to be honest!!
Just replace f(x) as y and write out the equation, since they both represent the same thing.
y=-4 <-- this is going to create a line horizontally that passes through -4.
So no matter what x coordinate is being considered, the range will always be -4. You can try this out;
f(-2)=-4, f(1)=-4, f(5)= -4
Hope I helped :)
Answer:
he is about 1.8 or 2 meters tall
Step-by-step explanation: