## anonymous one year ago The vertex of the parabola is at (-3, -2). which of the following could be its equation? A. x=-2(y+3)^2-2 B. x=-2(y+2)^2-3 C. x=-2(y-2)^2-3 D. x=-2(y-3)^2-2

1. anonymous

@ybarrap

2. anonymous

|dw:1434834519402:dw|

3. anonymous

@Haseeb96

4. Haseeb96

y=a(x-h)^2+k this is the general formula

5. Haseeb96

since (h,k)=(-3,-2)

6. Haseeb96

now just put it in the above equation and get your answer

7. Haseeb96

@ZoMbAsH you are correct

8. anonymous

It is D!?

9. anonymous

:D

10. ybarrap

|dw:1434834921447:dw|

11. anonymous

So B

12. ybarrap

Move left by 2, so k = -2 Move down by 3, so h = -3 Plug this into $$x=-2(y-h)+k$$

13. ybarrap

Plugging in we have... $$x=-2\left (y-(-3)\right )+(-2)$$ Does this make any sense?

14. anonymous

yeah