Final answer:
The original question is incomplete as the function f(x) is not specified. When finding f(a) for any function, substitute 'a' into the function and solve. For quadratic equations, use the quadratic formula to find the solutions.
Step-by-step explanation:
The student's question seems to be incomplete, as the function f(x) is not specified. However, I can provide guidance on how to approach similar problems. When given a function, say f(x), and asked to find f(a) where a is a specific number, you simply substitute the number into the function in place of x and evaluate.
Example of Evaluation of a Function
If f(x) = 2x + 3 and we need to find f(-8), we would substitute -8 into the function:
f(-8) = 2(-8) + 3 = -16 + 3 = -13.
Based on the examples provided, if we had a quadratic equation defined by ax² + bx + c = 0, we would use the quadratic formula to find the values of x.
Quadratic Formula
The quadratic formula is x = ∛ [(-b ± √(b² - 4ac))] / (2a) and it is used to find the solutions to the quadratic equations.
To answer the original question, additional information about the function f(x) is required.