If f(x) = 3x + 2, what is the value of f(2) and is it continuous?

Practice Questions

Q1
If f(x) = 3x + 2, what is the value of f(2) and is it continuous?
  1. 8, Continuous
  2. 8, Discontinuous
  3. 7, Continuous
  4. 7, Discontinuous

Questions & Step-by-Step Solutions

If f(x) = 3x + 2, what is the value of f(2) and is it continuous?
  • Step 1: Identify the function given, which is f(x) = 3x + 2.
  • Step 2: Substitute the value of x with 2 in the function. This means we will calculate f(2).
  • Step 3: Calculate f(2) by replacing x with 2 in the equation: f(2) = 3(2) + 2.
  • Step 4: Perform the multiplication: 3 times 2 equals 6.
  • Step 5: Add 2 to the result from Step 4: 6 + 2 equals 8.
  • Step 6: Conclude that f(2) = 8.
  • Step 7: Determine if the function is continuous. Since f(x) is a polynomial (3x + 2), it is continuous everywhere.
  • Function Evaluation – The process of finding the output of a function for a given input.
  • Continuity of Functions – Understanding that polynomial functions are continuous everywhere on their domain.
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