To find the y-intercept of the graph of the equation \( y = 2x^2 + 6x - 9 \), we substitute \( x = 0 \) into the equation:
\[ y = 2(0)^2 + 6(0) - 9 \] \[ y = 0 + 0 - 9 \] \[ y = -9 \]
Therefore, the y-intercept is \((0, -9)\).
The correct response is (0, -9).