Determine if the following relations are functions, and justify why. a) **{(1, −2), (−2, 0), (−1, 2), (1, 3)}
Function?:
Justification:

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

7

step-by-step explanation:

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step-by-step explanation: