Question

Graph an ellipse with foci at (±4, 0) and a minor axis of length 6 by hand

Answer 1

please helpp

Answer 2

Where do you think you'll put the center?

Answer 3

i think i got it actually

Answer 4

i just put the center at 0,0 and then a point at -4,0 and 4,0.

then for the minor axis length of 6, i put a point at 0,3 and 0,-3

Answer 5

idk if its right but thats what i did

Answer 6

Here is a picture
http://mathworld.wolfram.com/Ellipse.html

if you had a piece of string tied to both focus points, and it is just long enough to reach (0,3), you can use it to draw the whole ellipse

Answer 7

its that first proiblem

Answer 8

look at the link. notice that the ellipse goes around the focus.

Answer 9

The (0,3) and (0,-3) are right. The (-4,0) and (4,0) are actually inside the ellipse.
Use c²=a²-b² to find a.
c is 4 (focus) and b is 3 (minor).
a=5 so draw though (-5,0) and (5,0)

Answer 10

oh alright thanks.

while i have it up, can you take a look at number 6 to and tell me if thats right

Answer 11

looks good

Answer 12

looks ok, except it would look better if you use the same spacing on the x and y axes

Answer 13

alright thanks, and ya ino but im in a hurry and i dont really care if its all pretty or not
lol