What is the equation of the line that passes through (7,4) and (4,-2)?

2) (3,-7) and (8,2)

m=(2+7)/(8-3)=9/5

-7=3*9/5+b

-7=27/5+b

b=-7-27/5

b=-35/5-27/5

b=-62/5

y=9x/5-62/5 ans.

Step-by-step explanation:

the first one, all those points on the line just make a strait line.

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