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If a function f(x) is defined as f(x) = 2x + 3, what is the value of f(0)?

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Question: If a function f(x) is defined as f(x) = 2x + 3, what is the value of f(0)?

Options:

  1. 0
  2. 2
  3. 3
  4. 5

Correct Answer: 3

Solution: 

Substituting x = 0 into the function gives f(0) = 2(0) + 3 = 3.

If a function f(x) is defined as f(x) = 2x + 3, what is the value of f(0)?

Practice Questions

Q1
If a function f(x) is defined as f(x) = 2x + 3, what is the value of f(0)?
  1. 0
  2. 2
  3. 3
  4. 5

Questions & Step-by-Step Solutions

If a function f(x) is defined as f(x) = 2x + 3, what is the value of f(0)?
  • Step 1: Identify the function given, which is f(x) = 2x + 3.
  • Step 2: We need to find the value of the function when x is 0, so we will substitute 0 for x in the function.
  • Step 3: Substitute 0 into the function: f(0) = 2(0) + 3.
  • Step 4: Calculate 2(0), which equals 0.
  • Step 5: Now add 0 to 3: 0 + 3 equals 3.
  • Step 6: Therefore, the value of f(0) is 3.
  • Function Evaluation – Understanding how to substitute a value into a function to find its output.
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