## anonymous 4 years ago Find the following values to the equation of the ellipse (x+5)^2/25 +(y-7)^2/144 = 1. a. Center b. Vertices c. Length of minor axis d. Length of the major axis e. Foci

• This Question is Open
1. anonymous

here is all you need to answer this question: $\large \frac {(x-h)^2}{a^2}+\frac{(y-k)^2}{b^2}=1$ where (h,k) is the center vertices for this ellipse: (h,k$$\pm$$b) length of the minor axis: 2a length of major axis: 2b foci: (h,k$$\pm$$c where $$\large c^2 =b^2-a^2$$

2. anonymous

let's find (h,k) first... h= k= ??

3. anonymous

look at your equation and match it up with the one i wrote... what matches with h and k?

4. anonymous

please hurry i have to have this done in 5 minutes or i fail1!

5. anonymous

and thank you! :D

6. anonymous

idk what?

7. anonymous

$$\large \frac {(x-h)^2}{a^2}+\frac{(y-k)^2}{b^2}=1$$ $$\large \frac {(x+5)^2}{5^2}+\frac{(y-7)^2}{12^2}=1$$

8. anonymous

oh ok

9. anonymous

so what are the lengths without vvariables? o.O

10. anonymous

for the minor axis, its 2a for the major axis, its 2b you need to tell me what a and b are....

11. anonymous

3 minutes!!!!!

12. anonymous

but what about the ellipse that is nothing but variables?

13. anonymous

a is 5 b is 12

14. anonymous

and am i allowed to have variable in the legths?

15. anonymous

the equation tells you everything you need to know..... you can identify all these quantities i'm asking for just by looking at your equation...

16. anonymous

i already gave you a and b...

17. anonymous

so 2a is 10?

18. anonymous

yes.

19. anonymous

and 2b is 24?>

20. anonymous

yes

21. anonymous

and the foci and eellipse?

22. anonymous

what is c?

23. anonymous

use the relation i showed u.... in the first post...

24. anonymous

you already know what a and b are.. you can find c...

25. anonymous

hmmm i really do not know this plus i am slightly brain dead btw r u a guy or girl

26. anonymous

dont i just have get the square roote of c^2 and since c^2=119 than the answer would be 10.9? right?

27. anonymous

28. anonymous

just wanna know

29. anonymous

why?

30. anonymous

dpanlc?

31. anonymous

u there?

32. anonymous

idk so i dnt get it wrong

33. anonymous

reaally/?

34. anonymous

well i'm a girl....soooooooo

35. anonymous

yess i dnt wanna be rude kewl glad to have a gal pal