Find the eccentricity of the hyperbola. The distance from the center of the hyperbola to a focus is 7; distance from the center to a vertex is 3 O O V3 O O V12 7 O A LOT 5. Matching. Convert to the standard form to find the vertex, directrix, and focus. x* + 2x +1 = 8y - 24 vertex directrix focus 00:43:24