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For each function, determine the ‑ and ‑intercepts and the locator point (). If you have not already done so, write the equations in graphing form.

  1. -intercept:


    Since there is only one -intercept, the vertex must be at the -intercept.


  1. Start by determining the - and -intercepts.

    To find the -coordinate of the vertex, average the -intercepts.

    To find the -coordinate of the vertex, substitute the -coordinate of the vertex into the given equation and solve for .

    Now write the equation in graphing form.