Question

F(x)= −x^2+10x−6 Find f(−5)

Answer 1

Answer:

f(-5) = -81

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

1. Brackets
2. Parenthesis
3. Exponents
4. Multiplication
5. Division
6. Addition
7. Subtraction

• Left to Right

Algebra I

• Function Notation

Step-by-step explanation:

Step 1: Define

f(x) = -x² + 10x - 6

f(-5) is x = -5

Step 2: Evaluate

1. Substitute:                    f(-5) = -(-5)² + 10(-5) - 6
2. Exponents:                   f(-5) = -(25) + 10(-5) - 6
3. Multiply:                        f(-5) = -25 - 50 - 6
4. Subtract:                       f(-5) = -75 - 6
5. Subtract:                       f(-5) = -81