How would I find the discriminant of 3x^2+2x-7 and what does it ell me about the equation?

Question

hero · Answer

$$\sqrt{b^2-4ac}$$

Tells you whether there are real solutions or not.

hero · Answer

If the value under the square root is positive, then real solutions exist. 
If the value under the square root is negative, then no real solutions exist.

hero · Answer

Oh, and Hi

anonymous · Answer

lol hello, how are you today?

hero · Answer

I'm good. Just completed a day in class. About as terrible as it is for you at the bar.

anonymous · Answer

lol awww

anonymous · Answer

and if 
$$b^2-4ac=0$$ there is one solution, at the vertex, and it is a perfect square

hero · Answer

Thanks Sat

anonymous · Answer

just butted in, sorry

hero · Answer

I was actually giving her general info as it related to this specific quad

anonymous · Answer

I'm not exactly sure if I'm supposed to actually solve this or not though.

hero · Answer

Yes, you are.

hero · Answer

Well, at least assume you have to.

anonymous · Answer

I did :)