1. SQUARE ROOT Functions
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8-7: Square Root Graphs

2. Radical Functions
A radical function is a function whose rule is a radical expression, which include the_________________________, x y 1 4 9
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Square Root Graphs

3. Vertex form Vertical ___________________ or ___________________
a<0 --- reflection across the _________
h----_______________________
k---_______________________
b<0 --- reflection across the __________
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Square Root Graphs

4. EXAMPLE 1 Range: Domain: X f(x) 4/6/2019 4:09 PM
8-7: Square Root Graphs

5. EXAMPLE 2
Using the graph, f(x) = , as a guide, describe the transformation, identify the domain and range, and graph the function,
Domain:
Range:
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8-7: Square Root Graphs

6. EXAMPLE 3
Using the parent function as a guide, describe the transformation, identify the domain and range, and graph the function,
Domain:
Range:
g(x)
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8-7: Square Root Graphs

7. Your Turn
Using the parent function as a guide, describe the transformation, identify the domain and range, and graph the function,
Range:
Domain:
8-7: Square Root Graphs

8. Your Turn Graph each function and identify its domain and range of

9. Example 6: Applying Multiple Transformations
Use the graph shown as a guide, write the equation and describe the transformation from f to g. •