## f(x)=x³

### To evaluate any function, we replace the variable (in this case, x) with the given value and then calculate the result

To evaluate any function, we replace the variable (in this case, x) with the given value and then calculate the result.

For the function f(x) = x³, if we are given a specific value of x, we substitute that value for x in the equation and then simplify.

For example, let’s evaluate f(x) when x = 2.

Substituting x = 2 into the function f(x) = x³, we have:

f(2) = (2)³

To calculate 2³, we multiply 2 by itself three times:

2 x 2 x 2 = 8

Therefore, f(2) = 8.

Similarly, let’s evaluate f(x) when x = -1.

Substituting x = -1 into the function f(x) = x³, we have:

f(-1) = (-1)³

To calculate (-1)³, we multiply -1 by itself three times:

-1 x -1 x -1 = -1

Therefore, f(-1) = -1.

We can evaluate the function f(x) for any value of x in the same way. Just substitute the given value of x into the equation and simplify.

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