Question

which graph can be used to find the solution(s) to $x^2 - 1 = x + 1$?

Explanation:

Answer:

The graph of \( y = x^{2}-1 \) (a parabola) and \( y=x + 1 \) (a line) should be used. The third graph (from the left) shows \( y=x^{2}-1 \) (vertex at \( (0,-1) \)) and \( y=x + 1 \) (slope \(1\), \(y\)-intercept \(1\)).