The domain of a function is the set of values of x for which a value of y exists. In this case, the only way that a value of y would not exist is for a denominator to equal to zero. If this function is f(x) = 1/(x+1) + 5, then we must find the values of x for which the denominator (x+1) = 0, which is at x = -1.
Therefore the domain is all real numbers except x = -1. In interval notation this can be written as (-infinity, -1), (-1, infinity).
Answer:

General Formulas and Concepts:
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
<u>Algebra I</u>
- Slope Formula:

Step-by-step explanation:
<u>Step 1: Define</u>
Point (1, -3)
Point (0, -1)
<u>Step 2: Find slope </u><em><u>m</u></em>
Substitute in points into the slope formula to find rate of change
- Substitute [SF]:

- Add/Subtract:

- Divide:

IF THOU KISS (NOT) me not it is the answer you’re welcome
Do you mean checking your work? In that case it would be 9*20.