Answer:
f(a + 1) = a² + 2a + 2
General Formulas and Concepts:
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
<u>Algebra I</u>
- Terms/Coefficients
- Functions
- Function Notation
- Expand by FOIL
Step-by-step explanation:
<u>Step 1: Define</u>
<em>Identify</em>
f(x) = x² + 1
<u>Step 2: Evaluate</u>
- Substitute in <em>x</em> [Function f(x)]: f(a + 1) = (a + 1)² + 1
- Expand [FOIL]: f(a + 1) = a² + 2a + 1 + 1
- Combine like terms: f(a + 1) = a² + 2a + 2
Joan: 12 years old
Amber: 22 years old
If Amber is 2 years less than twice the age of Joan that means that Joan's age (12) times 2 (=24), minus 2 (=22) gives u Amber's age. Also when the two ages are added 12+22 they equal 34
Hope this helps! :)