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help
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- TL;DR Summary
- system of equations, circumference and parable
Good night!
How do I find the values of a (real) so that the solution of this system is?
(i) just an ordered pair?
(ii) exactly two pairs.
(iii) exactly 3?
(iv) is there a place where you have more than 3 pairs as an answer?So...
I thought like this: I developed the first part. I solved the system and found x²-ax-a-1 = 0
(i) I made the delta zero by finding a = -2. Point (-1.0)
(ii) I thought about doing a = 0 getting x = + - 1 finding the points (-1,0) and (1,0).
item iii. Making the drawing it is possible to verify -1<a<0 that but I don't know why.
I also know that there is no way but I don't know how to prove it.
How do I find the values of a (real) so that the solution of this system is?
(i) just an ordered pair?
(ii) exactly two pairs.
(iii) exactly 3?
(iv) is there a place where you have more than 3 pairs as an answer?So...
I thought like this: I developed the first part. I solved the system and found x²-ax-a-1 = 0
(i) I made the delta zero by finding a = -2. Point (-1.0)
(ii) I thought about doing a = 0 getting x = + - 1 finding the points (-1,0) and (1,0).
item iii. Making the drawing it is possible to verify -1<a<0 that but I don't know why.
I also know that there is no way but I don't know how to prove it.
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