HELP PLS AND I WILL GIVE BRAINLIEST PLS PLS PLS PLS HELP NOW PLS PLS I"M GIVING ALL MY POINTS HERE!!

C

Step-by-step explanation:

Domain is x

Plug x into the equation

y = 4x - 2

y = 4(1) - 2

y = 4 - 2

y = 2

Repeat for the other four numbers

y = 4(2) - 2

y = 8 - 2

y = 6

pretty sure its B. because 2 - 1 * 4 = 4

Step-by-step explanation:

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.