Question

PLEASE HELP ME!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
I WILL AWARD MEDAL!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
What is the length of the major axis of the ellipse given by the equation?

8

9

16

18

Answer 1

\[(x^2/81)+(y^2/64)=1\]

Answer 2

@Loser66 @Hero @satellite73 @texaschic101

Answer 3

@satellite73 @satellite73 @satellite73 @satellite73

Answer 4

hi

Answer 5

HI

Answer 6

center of your ellipse is \((0,0)\) right?

Answer 7

if it is not in the question then it is not their.

Answer 8

i am telling you it is \((0,0)\) because the general form is
\[\frac{(x-h)^2}{a^2}+\frac{(y-k)^2}{b^2}=1\] and is this case \(h=k=0\) so the center is \((0,0)\)

Answer 9

OH ok.

Answer 10

the major axis goes from \(-a\) to \(a\)
here you have \(a^2=81\) so what is \(a\) ?

Answer 11

It is 9

Answer 12

is this the answer.

Answer 13

hold on

Answer 14

yes

Answer 15

it asks for the length of the major axis, which goes from \((-9,0)\) to \((9,0)\)

Answer 16

also I have ONLY ONE MORE QUESTION TO ASK YOU PLEASE PLEASE PLEASE PLEASE PLEASE PLEASE PLEASE PLEASE

Answer 17

so the answer is NOT 9

Answer 18

OK so the answer can be found by using the distance formula?

Answer 19

it is 18

the length of the "semi major" axis is 9

Answer 20

you don't need the distance formula to find the distance between \((-9,0)\) and \((9,0)\)

Answer 21

lousy picture but you get the idea
distance is \(18\)

Answer 22

yes of course.

Answer 23

ok i can help you with the next one as well

Answer 24

ok thanks also I found one more question after that.