Question

The equation $\left|\begin{matrix}2& 1& 1\\ 1& 1&-1\\ y& x^{2}& x\end{matrix}\right|=0$ represents a parabola passing through the points}

• A. (0,1), (0,2), (0,-1)
• B. (0,0), (-1,1), (1,2)
• C. (1,0), (0,0), (2,2)
• D. (1,2), (2,1), (0,0)

Hint:

Determinant equations are just implicit equations. Expand them like any other matrix.

Answer 1

The Correct Option is D