I suck at math please help and explain the answer

Explanation:

Pick any two rows from the table. I'll pick the first two rows

x = -8 and y = 10

x = 0 and y = 8

Those two rows form the points (x1,y1) = (-8,10) and (x2,y2) = (0,8)

They are then plugged into the slope formula to get...

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

m = (8-10)/(0-(-8))

m = (8-10)/(0+8)

m = -2/8

m = -1/4

The slope or rate of change is -1/4

This means that each time x goes up by 4, y goes up by 1, since

slope = rise/run = -1/4

rise/run = -1/4

rise = -1 means we go down 1

run = 4 means we move to the right 4 units.

the answer   is 200

step-by-step explanation:

this is a problem about poisson probabilities.   i don't know if you've

already studied poisson distributions, or if you have a place to look

to read more about the subject.  

here's how you can see a poisson distribution coming.   when there are

a lot of events that may happen at any time (or any place), and when

you're counting how many of them happen at a particular time (or a

particular place), and each event is independent of the others, then

the result is a poisson distribution.   this is roughly true for the

chocolate chips; one chip being in a cookie has only a small effect on

the probability that another chip will be in the cookie.

once you know you have a poisson distribution, you know a lot.   there

is only one parameter to a poisson distribution, so if you know the

mean, you know everything.   the form of the distribution is

  probability of n chips = {[e^(-x)]*(x^n)} / (n! )

n

step-by-step explanation: