James takes two data points from the weight and feed cost data set to calculate a slope, or average rate of change. a hamster weighs 3 pounds and costs $3.50 per week to feed, while a chihuahua weighs 4.8 pounds and costs $6.20 per week to feed. using weight as the explanatory variable, what is the slope of the line between these two points? answer choices are rounded to the nearest hundredth.

slope=1.5

Step-by-step explanation:

m= rise/run= y^2-y^1/x^2-x^1

m=6.20-3.50/4.8-3

m=2.7/1.8

m=1.5

∞ this is your sign

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.