Complete the following sentence:

You can verify the zeros of the function by using a graph and finding where the graph.

You can verify the zeros of the function y=x2+6x-7 by using a graph and finding where the graph C. C. crosses the x-axis. Finding the zeros mean equating the equation to 0 or y = 0. When y = 0, this is equal to x-axis. C. is the answer to the problem given above.