Consider the function represented by 9x + 3y= 12 with x as the independent variable. How can this function be written using function notation?
O AD=-v
Of(x) = -3x+4
O POx) = -x +
O ft) = - 3y+4

For this one, you don't need to actually do any work.

Function notation is the f(x) or f(t) notation, but with function notation, the variable in the parentheses must match the variable on the right side of the equation.

f(a) = 2b+3 won't do any calculation because of the mismatched a and b.

Which answer is the only one with good function notation?

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