The solutions of x2 – 2x – 1 = 0 are the points of intersection of two graphs. if one of the graphs is y = 2 + x – x2, find the second graph
-
y = 1 - x
- y = 1 + x
- y = x - 1
- y = 3x + 3
The correct answer is: A
Explanation
The second graph is
\((x^{2} - 2x - 1) + (2 + x - x^{2})\)
= \(1 - x\)