Solve a Linear-Quadratic System by Graphing

Solve by graphing: Dave and Kevin are both on the soccer team at their high school. Dave is a forward and Kevin is the goalie. During practice, Dave kicked the ball and it followed a parabolic path that can be modeled by the following equation: $$y=-0.5x^2+x+8$$ In order to prevent a goal from being scored, Kevin dives towards the ball. His dive can be modeled by a line with the equation: $$y=-2x+13$$ At what point will Kevin catch the ball?