Question

Which graph can be used to find the solution(s) to x2 – 1 = x + 1?

Answer 1

Answer:

c

Step-by-step explanation:

Answer 2

Let

$f(x)=x^{2}-1$

$g(x)=x+1$

we know that

The function f(x) is a vertical parabola open upward

the vertex is the point $(0,-1)$ ------> is a minimum

The function g(x) is a linear equation

The y-intercept is the point $(0,1)$ -----> for $x=0$ find the value of g(x)

therefore

the answer in the attached figure