The function f is defined by f(x) = x3 + 15. What is the value of f (2) ?

Explanation

To find f(2), substitute 2 into the function f(x) = x3 + 15. This gives f(2) = (2)3 + 15. First, calculate the cube of 2, which is 8, and then add 15 to get 23. Therefore, the correct answer is 23.Options A, B, and D are incorrect due to errors in the calculation or misunderstanding the function's expression. Option A might stem from a simple arithmetic error, Option B results from using multiplication instead of exponentiation, and Option D might include an extra addition step.