Solve a Linear-Quadratic System by Graphing

Solve by graphing: Sarah went on a cruise during summer vacation. During the cruise, the ship stopped on a shore so the passengers could spend time on the beach. While on the beach Sarah saw a dolphin jump out of the water and dive into a wave. The dolphin's dive followed a parabolic path with the equation $$y=-0.25x^2+3x+5$$ The wave follows a linear path with the equation $$y=-2x+30$$ If we represent the scenario graphically, at what point does the dolphin reach the wave?