Average rate of change from g from x=3 to x=4 is

For a function of , the average rate of change can be found as follows:

So, we only need two points to compute this value. So, in this problem we have a table with several points, but the problem establishes that the ARC we need to find is the one between two points, that is, when x=3 and x=4. In this problem, is the function, so:

use this formula:

p(a\b) = p(a and b)/p(b).

take it from here.

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.