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Determine the number of solutions for the quadratic function f(x) = -x2 + 3x - 9.
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How would you like to solve this?
I don't know...whatever is the best way. By the way the choices are A. No real solutions B. 1 solution (double root) C. 2 distinct real routes
Well we should find the discriminant first: \[b^2-4ac\]
What is the standard formula?
\[\frac{-b \pm \sqrt{b^2-ac}}{2a}\]
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*4ac
I am so confused
The one posted above is used to solve for solutions, but the discriminant is used to determine the number of solutions
So how do I do it?
I meant for example where is a b c in the equation I gave like the standard form.
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