Pls will give brainliest and 5star pl

2)

P(4,-4) -->(-4, 7)

4 - 8 = -4           >left 8

-4 + 11 = 7         >up 11

left 8;  up 11

3)

C(3,-1) , left 4 up 1

3 - 4 = -1    >left 4

-1 + 1 = 0   >up 1

a)

(x , y) -->(x - 4 , y +1)

C(3, -1) -->C'(-1 , 0)

b)

(x , y) --> (x - 4, y + 1); (-1 , 0)

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.