x-intercepts

[snakeyesxlaw]

Suppose y = - x^2 - 8 x - 13
Find the following information for this function.

The coordinates of the Vertex are ( -4 , 3 ).

This parabola has 2 x-intercepts.
This parabola attains a Maximum value of 3 .

These intercepts occur at:

x = ?

(8 +or- (64-4(-1)(-13))**(1/2)) / 2(-1)

x = -4 + (3^(1/2))
x = -4 - (3^(1/2))

something is admist?

 

[Deleted member 4993]

Suppose y = - x^2 - 8 x - 13
Find the following information for this function.

The coordinates of the Vertex are ( -4 , 3 ).

This parabola has 2 x-intercepts.
This parabola attains a Maximum value of 3 .

These intercepts occur at:

x = ?

(8 +or- (64-4(-1)(-13))**(1/2)) / 2(-1)

x = -4 + (3^(1/2))
x = -4 - (3^(1/2))

something is admist?.............Why do you think so?

 

[snakeyesxlaw]

Suppose y = - x^2 - 8 x - 13
Find the following information for this function.

The coordinates of the Vertex are ( -4 , 3 ).

This parabola has 2 x-intercepts.
This parabola attains a Maximum value of 3 .

These intercepts occur at:

x = ?

(8 +or- (64-4(-1)(-13))**(1/2)) / 2(-1)

x = -4 + (3^(1/2))
x = -4 - (3^(1/2))

something is admist?.............Why do you think so?

i submitted these answers through a webassign homework type of grading and got them wrong.. not sure if these are correct..

 

[Deleted member 4993]

i submitted these answers through a webassign homework type of grading and got them wrong.. not sure if these are correct..

As far as I can tell, your answers are correct.