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Mathematics 13 Online
OpenStudy (anonymous):

If an equation has a positive discriminant, how many times will the graph touch the x–axis?

OpenStudy (saifoo.khan):

2

OpenStudy (anonymous):

twice. positive discriminant means it has two real zeros. so it crosses the x - axis twice, that is where it is zero

OpenStudy (saifoo.khan):

lol, Good question.

OpenStudy (anonymous):

assume it is quadratic, otherwise "discriminant" doesn't really make any sense

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