Can somebody answer this please and explain how they got the answer ??

Girardo is using the model below to solve the equation . girardo uses the following steps: step 1 add 4 negative x-tiles to both sides step 2 add 1 negative unit tile to both sides step 3 the solution is which step could be adjusted so that gerardo's final step results in a positive x-value? in step 1, he should have added 4 positive x-tiles to both sides. in step 1, he should have added 3 negative x-tiles to both sides. in step 2, he should have added 4 negative unit tiles to both sides. in step 2, he should have added 1 positive unit tile to both sides.

Which is an x-intercept of the graphed function? (0, 4) (–1, 0) (4, 0) (0, –1)

Use the drop-down menus to complete the statements to match the information shown by the graph.