Question

Where is the vertex of the parabola?

y = x2 + 2x + 3

A.
Above the x-axis

B.
Below the x-axis

C.
On the x-axis

D.
On the y-axis

Answer 1

y= x^2 + 2x +3 is what I meant.

Answer 2

First of all find the discriminant

Answer 3

Did you find it ?

Answer 4

no?

Answer 5

Do you know how to find discriminant?

Answer 6

No.

Answer 7

For a quadratic ax^2+bx+c

Discriminant=b^2-4ac

Answer 8

Now what?

Answer 9

Found it ?

Answer 10

Omg, I'm so confused! -.-

Answer 11

Why ?

Answer 12

Nvm -_____-

Answer 13

Take an example .For quadratic

x2+4x+5

Discriminant=16-4*1*5=1 6-20=-4

Answer 14

Okayyyy? So what's the answer?

Answer 15

Use that in your question ...I will verify