To translate the graph of \( y = |x| \) 10.5 units to the left, you need to replace \( x \) with \( x + 10.5 \) in the equation. This is because adding a value inside the absolute value expression shifts the graph to the left.
So, the correct equation for the translation of \( y = |x| \) 10.5 units to the left is:
\[ y = |x + 10.5| \]
Thus, the correct answer is:
y = |x + 10.5|