A circle is given as:

ax^2 - 12x + ay^2 +16y = 25

How to find 'a' ?

Please help.

Thanks.

A circle is given as:

ax^2 - 12x + ay^2 +16y = 25

How to find 'a' ?

Please help.

Thanks.

ax^2 - 12x + ay^2 +16y = 25

How to find 'a' ?

Please help.

Thanks.

- stapel_eliz
**Posts:**1743**Joined:**Mon Dec 08, 2008 4:22 pm-
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mitnord wrote:A circle is given as: ax^2 - 12x + ay^2 +16y = 25

How to find 'a' ?

I'm not sure what they're expecting from you here. Without additional information, surely there are infinitely-many possible values for "a"...?

You have:

. . . . .

Completing the square gives:

. . . . .

. . . . .

. . . . .

. . . . .

But without some sort of restrictions on the circle, more information on "a", or something else, I see no way to find "the" value of "a".

Please consult with your instructor, and reply. Thank you!