Ask your own question, for FREE!
Mathematics 7 Online
OpenStudy (liv1234):

@vocaloid Can you help me please?

OpenStudy (liv1234):

Vocaloid (vocaloid):

any ideas?

OpenStudy (liv1234):

I was thinking option D.

Vocaloid (vocaloid):

not quite

Vocaloid (vocaloid):

first step is to find our h,k,a,b values

OpenStudy (liv1234):

I was thinking that it might be B too.

Vocaloid (vocaloid):

h and k = 0 since it's at the origin

OpenStudy (liv1234):

Okay.

Vocaloid (vocaloid):

the vertex equation is (h +- a, k) since our vertex is (-6,0) our a value is -6

Vocaloid (vocaloid):

and since the co-vertex is (h, k +-b) the b value is 4

Vocaloid (vocaloid):

so, given that a = -6 and b = 4 and the equation of an ellipse at the origin is x^2/a^2 + y^2/b^2 = 1

OpenStudy (liv1234):

Wouldn't I then multiply 6^2 and 4^2?

Vocaloid (vocaloid):

what do you think the equation is?

Vocaloid (vocaloid):

yes, 6^2 and 4^2 give us 36 and 16

OpenStudy (liv1234):

Option C? Because 6^2 = 36 and 4^2 = 16 and a=6 and b=4

Vocaloid (vocaloid):

good!

Vocaloid (vocaloid):

anything else?

OpenStudy (liv1234):

Can you check an answer for me?

Vocaloid (vocaloid):

sure, just open a new post

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!