If $$ \sqrt{y + 3} = 9 $$ , then $$ y = \underline{\quad} $$...

Question Analysis
This question tests the ability to solve an equation involving a square root function. The key is to isolate the square root term and then square both sides to eliminate the square root.

Key Concept Explanation
To solve the equation , we need to square both sides to remove the square root and then solve for .

Step-by-step Solution
1. Square both sides of the equation: