High School

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------------------------------------------------ If \( f(x) = 3x^4 \), what is \( f(3) \)?

A. 81
B. 729
C. 1,729,720
D. 81

Answer :

Final answer:

To find f(3), we replace x with 3 in the function f(x)=3/94. So, f(3)=81. Option (D) is correct.

Explanation:

Evaluating a function means substituting a variable with its given number or expression. This means substituting 5 for x and simplifying. It is recommended that the value being substituted be placed inside parentheses. (This is just to make things easier to look at.)

An evaluation function, also known as a heuristic evaluation function or static evaluation function, is a function used by game-playing computer programs to estimate the value or goodness of a position (usually at a leaf or terminal node) in a game tree.

Functions can be used in real-life situations when an inputted value has a specific output value. For example, the distance a car has traveled (the output) is dependent on how long that car has been driving (the input).

To find f(3), we replace x with 3 in the function f(x)=3/94.

So, f(3)=3/94.

Therefore, the value of f(3) is 81.