Question

the graph of $y = x^2 + 2x$ is shown below. use the graph to solve the equation $x^2 + 2x = 0$.
enter the solution(s) in the box below. if there is more than 1 solution, separate the values with a comma (example: -3, 2). if there are no solutions, enter dne for does not exist.
question help: video

Explanation:

Step1: Identify equation roots via graph

The solutions to $x^2 + 2x = 0$ are the $x$-intercepts of $y = x^2 + 2x$, where the graph crosses the $x$-axis ($y=0$).

Step2: Locate x-intercepts on graph

From the graph, the parabola crosses the $x$-axis at $x = -2$ and $x = 0$.

Answer:

-2, 0