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OpenStudy (anonymous):
how do you if a graph has a discriminent of zero?
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OpenStudy (anonymous):
will it only touch the x-axis once?
OpenStudy (paxpolaris):
a quadratic function with a disriminant 0..(meaning only 1 repeated real solution @ f(x)=0)... will have vertex on x-axis
OpenStudy (paxpolaris):
yes... and that will have to be the vertex
OpenStudy (anonymous):
so this graph is an example of a discriminent of 0
OpenStudy (anonymous):
?
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OpenStudy (paxpolaris):
yes ... \[y=(x-1)^2 \] is an example of that
OpenStudy (anonymous):
thank you
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