To identify the y-intercept of the exponential function \( y = 0.5(6)^x \), we evaluate the function at \( x = 0 \).
\[ y = 0.5(6)^0 \]
Since \( (6)^0 = 1 \), we have:
\[ y = 0.5 \times 1 = 0.5 \]
Thus, the y-intercept is \( 0.5 \).
The correct response is:
0.5