Ask your own question, for FREE!
Mathematics 6 Online
OpenStudy (bruno102):

Determine the number of solutions for the quadratic function f(x) = -x2 + 3x - 9.

OpenStudy (luigi0210):

How would you like to solve this?

OpenStudy (bruno102):

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

OpenStudy (luigi0210):

Well we should find the discriminant first: \[b^2-4ac\]

OpenStudy (bruno102):

What is the standard formula?

OpenStudy (luigi0210):

\[\frac{-b \pm \sqrt{b^2-ac}}{2a}\]

OpenStudy (luigi0210):

*4ac

OpenStudy (bruno102):

I am so confused

OpenStudy (luigi0210):

The one posted above is used to solve for solutions, but the discriminant is used to determine the number of solutions

OpenStudy (bruno102):

So how do I do it?

OpenStudy (bruno102):

I meant for example where is a b c in the equation I gave like the standard form.

OpenStudy (luigi0210):

|dw:1377637575714:dw|

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Latest Questions
Countless7Echos: Ah trying out the whole T.V girl drawing :p (I love drawing eyes)
3 hours ago 13 Replies 6 Medals
kaelynw: starting to draw a hand
11 hours ago 17 Replies 2 Medals
Twaylor: Rate it :D (Took 2 days)
4 days ago 7 Replies 0 Medals
XShawtyX: Art, Short Writing Assignment: Imagining Landscapes
2 days ago 7 Replies 1 Medal
XShawtyX: Chemistry, Help ud83dude4fud83cudffe
5 days ago 13 Replies 1 Medal
kaelynw: tried a lil smt, the arm is off but i like the other stuff
5 days ago 27 Replies 3 Medals
kaelynw: art igg
5 days ago 14 Replies 1 Medal
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!