Please help with this

Line k

Step-by-step explanation:

The slope is found by rise/run which is change in y/change in x. If you look at a certain few points on line k, you will see it is 3/1 which is 3. The line is going downwards so it is -3.

line k

Step-by-step explanation:

Hey There!

So immediately we notice that the slope is negative so we can eliminate line m and line n

So its between line k and j

we notice that it says -3

so the rise over run has to be down 3 over 1

line k shows exactly this

therefore line k is your answer :)

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.

kjnsk nidn t

dfj dt

step-by-step explanation:

vjnijernv