Question

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

Answer 1

Explanation:

Step 1 - Separate LHS and RHS of the given polynomial.

--- (1)

y = x + 1 --- (2)

Step 2 - Draw the graph of a line (y = x + 1) that passes through the points (-1,0) and (0,1).

Step 3 - Now, draw the graph of the equation (1). The shape of this graph is the upward parabola.

Step 4 - The two graphs intersect each other at (-1,0) and (2,3).

From the above steps, it can be concluded that the correct option is C).