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explain how you can tell that the quadratic function y=x^+6x+15 has no real zeros without graphing the function
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explain how you can tell that the quadratic function y=x^+6x+15 has no real zeros without graphing the function

User Lavya
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It's y intercept is positve 15 and has a positive slope and a positive "x^2" term
User Pankmish
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