(1,-1),(-1,-1),(2,1),(-2,11) third degr, goes through these points, Whats the equation ?

Question

(1,-1),(-1,-1),(2,1),(-2,11) third degr, goes through these points,  Whats the equation ?

anonymous · Answer

(1,-1),(-1,-1),(2,-1),(-2,11)  sorry forgot one minus

anonymous · Answer

third-degree polynomial  does that make any sense sorry I dont speak english very well :-)  Im translating :-)

cwrw238 · Answer

are the first 2 coordinates correct ? they have different x value but same y-value.

cwrw238 · Answer

look at this link to see the plot of these points http://www.wolframalpha.com/input/?i=%281%2C-1%29%2C%28-1%2C-1%29%2C%282%2C1%29%2C%28-2%2C11%29+

anonymous · Answer

Yes these cordinates are correct a should find the third-degree polynomial ?  I am not understanding this but it should be found in way like this:$$\left[\begin{matrix}11 1 1 & |-1 \ -1  1-11 & |-1\end{matrix}\right]$$   Sorry cont do it better does this make any sense ?