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9 votes
What is f(6)?
f(x) = 5x - 2

User Matanper
by
8.6k points

2 Answers

4 votes

Answer: 28

=========================================================

Step-by-step explanation:

Everywhere you see an x, replace it with 6

f(x) = 5x - 2

f(6) = 5*6 - 2

f(6) = 30 - 2

f(6) = 28

Remember that 5x is the same as 5*x or "5 times x". So that's why 5x turned into 5*6 after replacing x with 6. After every x is replaced, you follow the order of operations PEMDAS to simplify.

User Discombobulous
by
8.3k points
10 votes

Answer:

f(6) = 28

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

  • Functions
  • Function Notation

Step-by-step explanation:

Step 1: Define

f(x) = 5x - 2

f(6) is x = 6

Step 2: Evaluate

  1. Substitute in x [Function]: f(6) = 5(6) - 2
  2. Multiplication: f(6) = 30 - 2
  3. Subtraction: f(6) = 28
User Chirag Ghiyad
by
8.5k points

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