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OpenStudy (anonymous):
If an equation has a positive discriminant, how many times will the graph touch the x–axis? Answers: 1 3 0 2
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OpenStudy (anonymous):
two times!
OpenStudy (anonymous):
\[y=ax^2+bx+c\] if \[b^2-4ac>0\] then \[y=ax^2+bx+c=0\] as two solutions by the quadratic formula, so crosses the x axis twice
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