Given y=x, what is the constant of proportionality?

1

Step-by-step explanation:

The constant of proportionality when the equation is y = ax is a.

There is nothing written there so a is assumed to be 1.

If y = 3.443

Then the constant of proportionality is 3.443, which is the value of a.

reduce the friction between its moving parts

step-by-step explanation:

in fact, by reducing the friction between the moving parts of the machine, it is possible to reduce the energy wasted due to this friction; therefore, more input energy is converted into useful work, and this will improve the efficiency of the machine.