What is the rate of change of the line that contains the coordinate points (8,-3) and (-2,7)

Rate of change is the slope of the line.

Slope = change in y over the change in x.

Slope = (7 - -3) / ( -2 -8)

Slope = 10/-10

Slope = -1

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.