Determine the range of the function f(x)=3x-9 when the domain is {-2, 0, 3}. {-6, 0, 9} {-15, -9, 0} {3, 9, 18} {-2, 0, 3}

-7/8

step-by-step explanation:

instead of subtracting you add the -6/8 and -1/8

whole numbers.

step-by-step explanation:

we are given the average monthly rainfall (in millimeters) model r(m) for the years 1900-2009 as a function of the month number m.

as we can see m is taken for the number of months for years 1900-2009.

we know that number of months can't be a negative number or decimal number or a fraction.

so, the number of months could be only positive whole numbers.

therefore, whole numbers is more appropriate for the domain of r.