21 Mr. Martinez asked his students to write a situation that could describe the relationship between all the values of x and y in the table.
X
0
1
2
3
6
2
8
Which situation best describes the relationship between all the values of x and y in the table?
A Rachel had six dollars and then started to save one dollar each week.
B Beatriz ran one mile the first week and one mile each week after that.
C James read zero books in six months and then started to read one book each week.
D Marion has six times the number of toys trains that Tony has.
A

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.

definitely a. the others have almost all data points on one side of the line.

step-by-step explanation: