Find the focus, directrix, vertex and axis of symmetry for the parabola 12(y + 3) = (1 - 2)2
Focus =

Directrix =
Vertex =

Graph the parabola. Include the directrix and focus with your graph.
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an advantage of the standard deviation is that it increases as the dispersion of the data increases. e. the interquartile range is preferred when the data are not skewed or no have outliers. an advantage of the standard deviation is that it uses all the observations in its computation.