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If f(x) = 2x + 3, what is f(4)?

Practice Questions

Q1
If f(x) = 2x + 3, what is f(4)?
  1. 8
  2. 11
  3. 12
  4. 10

Questions & Step-by-Step Solutions

If f(x) = 2x + 3, what is f(4)?
  • Step 1: Identify the function f(x) = 2x + 3.
  • Step 2: Substitute x with 4 in the function. This means we replace x in the equation with 4.
  • Step 3: Write the equation with the substituted value: f(4) = 2(4) + 3.
  • Step 4: Calculate 2 times 4, which is 8.
  • Step 5: Add 3 to the result from Step 4: 8 + 3.
  • Step 6: The final result is 11, so f(4) = 11.
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