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2-83.

Change the equation in problem 2-82 so that the parabola has only one x‑intercept. Homework Help ✎

Remember that the parabola's vertex was

Remember that the only way for a parabola to have only one x-intercept is to have the vertex touching the x-axis.

To make it so the equation only has one x-intercept, you must make the vertex's y value equal 0.