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The vertex of a parabola is at $(12, -4)$, and its axis of symmetry is vertical. One of the $x$-intercepts is at $(15, 0)$. What is the $x$-coordinate of the other $x$-intercept?

 May 17, 2021
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If  the   vertex  is     (12, -4)    and   one  of  the  x intercepts  =  (15, 0)

 

By  symmetry.......the other  x intercept  is  given by    12 -  ( 15 - 12) =  12 - 3   =  9

 

 

cool cool cool

 May 17, 2021

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