{"type":"rich","version":"1.0","title":"Function f(x) = (2x - 5)/(x^2 + 4) on the Desmos Graphing Calculator","html":"<iframe src=\"https://www.desmos.com/calculator/zbqbzbtm6a?embed\" width=\"500px\" height=\"500px\" style=\"border: 1px solid #ccc\" frameborder=0></iframe>","width":500,"height":500}