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10-8.

 Complete the square to write in graphing form. Then determine the vertex and the intercepts of the parabola.

Make two perfect squares. 2 generic rectangles squares, each with interior labeled as follows: top left, x squared, top right & bottom left, each labeled 3, x. Bottom right blank. To the right of the second square is the label, negative 7.

Added to the squares, top side & left side, on each, labeled, x, + 3. Interior bottom right each labeled, 9. After the negative 7, is the label negative 18.

Graphing form:
 
Vertex: -intercept: