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Graphing Radical Equations

Videos, worksheets, games and acivities to help Algebra 1 students learn how to graph radical equations.

Graphing Radical Equations using a Table
One way to graph radical functions is to create a table of values and then plot the points. Before starting the table, first determine the domain of the function. Remember, the radical must be greater than or equal to zero. Once this lower limit for input (domain) values is established, create the table of values. When graphing radicals we plot the points in the coordinate plane.

Graphing Radical Equations using Shifts
When graphing radical equations using shifts, adding or subtracting a constant that is not in theradical will shift the graph up (adding) or down (subtracting). Adding or subtracting a constant that is in the radical will shift the graph left (adding) or right (subtracting). Multiplying a negative constant by the equation will reflect the graph over the x-axis. Multiplying by a number larger than one increases the y-values.

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