Question

If `f(x)=abs(x^2-3)`, how do you find f(2)?

Answer 1

Replace the `x` with the given value of 2, then follow normal order of operations.

Explanation:

#f(2) = |2^2 - 3| = |4-3| = |1|

Since the argument in the absolute value bars is a positive number, they serve no real purpose, and can be removed.

(Had the argument in the bars been -1, the answer would also have been 1, since the absolute value always returns a positive result.)