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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?

 Jan 14, 2021
edited by Guest  Jan 14, 2021
 #1
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The x intercepts  are symmetrical  about the  x coordinate of the  vertex

 

The other x intercept  is   ( 12  - (15-12) )  =   ( 12  - 3)   =   9

 

 

cool cool cool

 Jan 14, 2021

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