Graphing radical and square root functions worksheet for Algebra 1
Algebra 1 meets the square root and cube root functions as parent graphs and their shifts. Most of the graphs here are cube roots, which have no endpoint and bend through a center point; square roots start at an endpoint. Make a short table using x-values that put perfect squares or cubes inside the root, plot a few points, and state the domain and range of the square root functions as inequalities.
Also taught in Algebra 2, at its own level and with its own examples.
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Sigma Prep · sigmaprep.io/worksheets Name Graphing Radical Functions Date Period Graph each function, or state its domain and range.
Free math worksheets at sigmaprep.io/worksheets© 2026 Sigma Prep |
Sigma Prep · sigmaprep.io/worksheets Name Graphing Radical FunctionsAnswer keyVersion 2 Date Period Graph each function, or state its domain and range.
Free math worksheets at sigmaprep.io/worksheets© 2026 Sigma Prep |
How to do these
State the domain and range of
- The inside must be at least 0: x + 2 ≥ 0, so x ≥ -2.
- The root is never negative, so y is at least -1.
The answer is Domain: ; range: .
Where students go wrong
Shifting the graph the wrong way. In y = √(x + 2) the inside is zero at x = -2, so the graph starts 2 units to the left, not the right.
Also called graphing square root functions, cube root graphs or radical function transformations.
What you can put on this worksheet
- A square root or cube root function
- Graph → Starts at , through
- Domain and range
- State the domain and range of → Domain: ; range:
- A fraction in front
- Graph, and give the domain and range:
→ Domain: Range: