A polynomial is made up of one or more terms, which are typically in the form of \(ax^n\) where \(a\) is a coefficient, \(x\) is a variable, and \(n\) is a non-negative integer.
Let's break down the given polynomial:
\[ 3x^3 - 2y + 8x - 16 \]
We can identify the individual terms:
- \(3x^3\)
- \(-2y\)
- \(8x\)
- \(-16\)
There are a total of 4 distinct terms in this polynomial.
Therefore, the answer is 4.