Asked by Preston
The discriminant of an equation is 73. How many times will the graph of this equation touch the x–axis?
Answers
Answered by
drwls
You are evidently talking about a quadratic equation of the form
y = Ax^2 + Bx + C = 0
There are two solutions (x values for which y=0) if the discriminant, B^2-4AC, is positive.
y = Ax^2 + Bx + C = 0
There are two solutions (x values for which y=0) if the discriminant, B^2-4AC, is positive.
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