Can you help me on this algebra 2 question?

The domain of (f+g)(x) is all real numbers.

The domain of (f-g)(x) is all real numbers.

Step-by-step explanation:

The given functions are

and

By the algebraic properties of polynomial functions:

This becomes:

We subtract to obtain:

Also

When x=-4

Then also;

The domain refers to the values that makes the function defined.

Both are cube root functions and are defined for all real numbers.

The domain of (f+g)(x) is all real numbers.

The domain of (f-g)(x) is all real numbers.

correct choice is b

step-by-step explanation:

when you calculate the average rate of change of a function, you are finding the slope of the secant line between the two points. for the function the average rate of change from point to point can be calculated as

to find the average rate of change from day 2 to day 10, note that at day 2, 8 houses were sold, so a(2,8) and at day 10, 2 houses were sold, so b(10,2). thus,