Use the slope formula to find the slope of a line given two points

Well it can be in this format

(x1, y1) (x2, y2)

So just plug it in into the slope formula which is

y2-y1 / X2-X1

Now solve

For number 1 its

1 since -7/-7 is basically 1

For number 2 its

3/2

For number 3 its

-1

(7,2) and (0, -5) have a slope of 1

(1,6) and (-3, 0) have a slope of 1.5

(-7, -3) and  (-6, -4) have a slope of -1

Brainiest answer would be greatly appreciated! :D

146%

step-by-step explanation:

the total estimated nappy use.=10,500,000

step-by-step explanation:

given that on an average the average baby uses 3528 napkins.

in a particular year 2014, the number of births were 299697 in new south wales.

rounding off the number of births to the nearest hundred thousand we have

no of birtsh = 300000

also rounding off the average usage to nearst thousand we get

average use of a baby = 3500

hence total number of nappy estimated to be used = 3500x300000

= 10,500,000

answer is 10,500,000 nappies