Question 362481
The x coordinate of vertex occurs where the argument of the absolute value function equals zero.
{{{x=0}}}.
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The y coordinate of the vertex is {{{Y=0-5=-5}}}
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Vertex:({{{0}}},{{{-5}}})
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{{{drawing(300,300,-8,8,-8,8,grid(1),circle(0,-5,0.3),graph(300,300,-8,8,-8,8,abs(x)-5))}}}