Two cups of coffee, one that is at 10°C and one that is at 20°C, are mixed. Which statement about the temperature of the mixture is correct? There is no kinetic energy transfer so the temperature of the coffee in the warmer cup is the final temperature.
The kinetic theory dictates that the temperature of the coffee in the cooler cup is the final temperature.
Energy is transferred from faster moving molecules to slower moving molecules, and the result is the average of 15°C.
Energy transfer occurs as the molecules collide, and the result is additive; the final temperature is 30°C.

to plot points   for x just start at the origin (middle) and go to the left however many times it say(if the number is a positive) if the number is a negative then go right however many times it says if it is 0 go nowhere

now keep you pencil there and go up however many times it says on y(if it is positive) if it is negative then go down however many times it says. if it says 0 go nowhere.

you have just plotted a point! now when you finish plotting all of them connect them with a ruler

plot each point as (-3, 7), (0,4), (3,1), (8,-4)   in the parenthesis on the left of the comma is x and the right is y.