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If f(x) = x^2 - 4x + 3, what is the value of f(2)?

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Question: If f(x) = x^2 - 4x + 3, what is the value of f(2)?

Options:

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Correct Answer: 0

Solution: 

f(2) = 2^2 - 4*2 + 3 = 4 - 8 + 3 = -1.

If f(x) = x^2 - 4x + 3, what is the value of f(2)?

Practice Questions

Q1
If f(x) = x^2 - 4x + 3, what is the value of f(2)?
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Questions & Step-by-Step Solutions

If f(x) = x^2 - 4x + 3, what is the value of f(2)?
  • Step 1: Identify the function f(x) = x^2 - 4x + 3.
  • Step 2: Substitute x with 2 in the function to find f(2).
  • Step 3: Calculate 2^2, which is 4.
  • Step 4: Calculate -4 * 2, which is -8.
  • Step 5: Add the results from Step 3 and Step 4 to 3: 4 - 8 + 3.
  • Step 6: First, calculate 4 - 8, which equals -4.
  • Step 7: Now, add -4 and 3: -4 + 3 equals -1.
  • Step 8: Therefore, the value of f(2) is -1.
  • Function Evaluation – The question tests the ability to evaluate a quadratic function at a specific point.
  • Quadratic Functions – Understanding the structure of a quadratic function and how to manipulate it.
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