1. The problem asks to identify the algebraic term represented by a single large square tile. 2. In algebra tiles, a large square tile typically represents the term $x^2$ because its area corresponds to $x \times x = x^2$. 3. The options given are $x$, $-x^2$, $-x$, and $x^2$. 4. Since the tile is a large square and colored gold (usually positive), it represents $x^2$. 5. Therefore, the correct term represented by the tile is $x^2$. Final answer: $x^2$