Question

Where is the vertex of the parabola?



y = x2 + 2x + 1









A.

Above the x-axis








B.

Below the x-axis








C.

On the x-axis








D.

On the y-axis

Answer 1

@eflatt13 what do you think?

Answer 2

Below the x-axis

Answer 3

Have you considered:
1) Completing the Square?
2) Calculating -b/(2a)?

Answer 4

Not quite. Can you explain why you thought it must be b?
We could just go ahead and find the vertex for it. There's a formula for the x-coordinate

Answer 5

x=-b/2a through this u can find the value of x then substitute it in the equation to get the value of y and that will give u the vertex

Answer 6

the equation is in the form of ax^+bx+c=0

Answer 7

To see this one, one way is just compute the vertex.