To predict the revenue generated from a $200 investment in advertising using the trend line equation \( y = 2.53x + 43 \):
- Substitute \( x = 200 \) into the equation.
- Calculate \( y \):
\[ y = 2.53(200) + 43 \]
\[ y = 506 + 43 \]
\[ y = 549 \]
So, the revenue generated for a $200.00 investment in advertising is $549.00.