A line passes through (-2,-4) and (-6,-5). What is the slope?

A) 3/4

B) -3/4

C) 1/4

D) -1/4

1/4

Step-by-step explanation:

The slope is given by

m = (y2-y1)/(x2-x1)

    = (-5- -4)/(-6 - -2)

    = (-5+4)/(-6+2)

    = (-1) / -4

72 fudge and 75 toffee

step-by-step explanation:

i hope this : )

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.