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

Study for the TExES Mathematics 4-8 Test. Practice with flashcards and multiple choice questions. Assess your knowledge to prepare effectively and excel in your exam!

To find the value of the function f(x) = 3x + 2 at x = 4, you substitute 4 into the equation in place of x. This means you calculate f(4) as follows:

  1. Start with the function: f(x) = 3x + 2.

  1. Substitute 4 for x: f(4) = 3(4) + 2.

  2. Perform the multiplication: 3(4) equals 12.

  3. Add 2 to this result: 12 + 2 equals 14.

Thus, f(4) evaluates to 14. This confirms that the correct answer accurately reflects the function's value when evaluated at x = 4.

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