And can you give an explanation on how you got the answer too?

b.

Step-by-step explanation:

When you replace x in a parent function by x - h, the function shifts h units horizontally.

Here, x is replaced with x + 4.

x + 4 = x - (-4)

x - (4) = x - h, so h = -4.

The shift is 4 units to the left.

b.

can someone answer this question plz

step-by-step explanation:

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.