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Mathematics 69 Online
OpenStudy (anonymous):

Calculate the discriminant to determine the number of real roots. y = x^2 + 3x + 9 How many real roots does the equation have? A. two real roots B. one real root C. no real roots D. no solution to the equation

OpenStudy (jacobbirddog):

what is tat profile pic from? it looks so awesome (sorry for being that guy)

OpenStudy (campbell_st):

well the discriminant is \[\Delta = b^2 - 4ac\] and is part of the general quadratic formula so the conditions for the discriminant are two unequal real roots \[\Delta > 0\] two equal roots \[\Delta = 0\] No real roots \[\Delta < 0\] in your question you have a = 1, b = 3 and c = 9 substitute and calculate the answer... then compare it to the conditions above to determine the types of roots. hope it helps

OpenStudy (anonymous):

Thank you so much @campbell_st

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