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2-36.

Find the vertex of each of the following parabolas by averaging the -intercepts. Then write each equation in graphing form. Homework Help ✎

  1. What are the -intercepts of this equation? After finding them, average the -coordinates to find the -value, and then substitute this value into the equation to find the corresponding -value.

    -intercepts: and
    vertex:

    equation: 

  1. Refer to part (a).

    -intercepts: and
    vertex:

    equation:

  1. Refer to part (a).

    -intercepts: and
    vertex:

    equation: 

  1. First square and combine like terms.

    Refer to part (a).