Question

Find the vertex of the parabola whose equation is y = x^2 + 2x + 9.

Answer 1

(-1, 8)
(1, 12)
(0, 9)

Answer 2

well, one thing we can do is use the formula -b/2a, where a and be are coefficents

Answer 3

this formula well give you the x coordinate of the vertx, then you simply plug that value back into your original equation to obtain the y coordiante of the vertex

Answer 4

the equation is given in standard form,\[y = ax^2 + bx + c\]identify a,b and c and then find the x-axis of the vertex using the formula\[x = -\frac{b}{2a}\]to find the y-axis just plug in the x to the equation

Answer 5

ok

Answer 6

Tylertriebs graph or complete the square to change it into vertex form.

Answer 7

ok

Answer 8

brb

Answer 9

ok back

Answer 10

wouldnt u get 0,9

Answer 11

use the formula we provide you above, -b/2a---->x coordinate of vertex

Answer 12

in this case b=1 and a=1, plug it into the formula what do you get?

Answer 13

0.5

Answer 14

1 my bad

Answer 15

so u get the middle answer

Answer 16

right

Answer 17

??????