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8-38.

For each pair of intercepts given below, write an equation for a quadratic function in standard form. Homework Help ✎

  1.  and

    Work backwards: use the zero product property to write an equation in factored form, then simplify.

    or
    or

  1.  and

    See part (a).

    Since we don't usually factor with fractions,

     is not considered a factor.

    Consider what you would have done to get 

    If  ,The step before that was