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What is a radical equation?

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A radical equation is an equation in which a variable is contained within a radical (square root, cube root, etc.).

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What is the general form of a square root function?

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It starts at the origin (0,0) and increases to the right, forming a half parabola.

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Changing h shifts the graph horizontally. If h is positive, the graph shifts right; if negative, it shifts left.

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Changing k shifts the graph vertically. If k is positive, the graph shifts up; if negative, it shifts down.

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Start at (4, -2) and use the shape of the square root function to plot points to the right.

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It reflects the graph across the x-axis.