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  • 21-12-2020
  • Mathematics
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1. For the function f(x) = 3x + 1, find f(-2). (substitute -2 in for x)


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Space
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  • 21-12-2020

Answer:

f(-2) = -5

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) = 3x + 1

f(-2) is x = -2

Step 2: Evaluate

  1. Substitute in x:                    f(-2) = 3(-2) + 1
  2. Multiply:                               f(-2) = -6 + 1
  3. Add:                                     f(-2) = -5
Answer Link

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