To find the y-intercept of the function \( y = 15(2^x) \), we evaluate the function at \( x = 0 \).
Substituting \( x = 0 \) into the equation:
\[ y = 15(2^0) \]
Since \( 2^0 = 1 \):
\[ y = 15(1) = 15 \]
Therefore, the y-intercept is at the point \( (0, 15) \).
So, the y-intercept is:
\[ (0, 15) \]