Find the missing value so that the line passing through the 2 points has the given slope. (12.-12) and (7. y); slope: -3

-17

Step-by-step explanation:

We know that the slope of a line passing through the points ( x ₁ , y₁) and ( x₂ , y₂ ) is ,

→ Slope ( m ) = ( y₂ - y₁) / ( x₂ - x ₁ )

→ m = -12 - y / 12 - 7

→ 1 = -(12+y)/ 5

→ 5 = -12 - y

→ y = -12-5

→ y = -17

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.