1. Objective: To graph square root functions
Lesson 10.1
Objective: To graph square root functions
EQ: How do you graph a square root function?
Basic form of square root function. Remember that you can’t find the square root of a negative number.
Sometimes you may need to use a calculator to round square roots that are not perfect squares.

2. If x is less than zero, then its undefined.
Graph
Parent Function X Y 1 2 3 4 9 1
1.4
1.7 2 3
Domain: input x x > 0
If x is less than zero, then its undefined.
Range: output y y > 0

3. Graph Domain: input x x > 0 Range: output y y > 2 2 3 3.4 3.7 41 2 3 4 9 2 3
3.4
3.7 4 5
Domain: input x x > 0
Range: output y y > 2

4. Graph Domain: input x x > -1 Range: output y y > 0 1 1.4 1.7 2 31 2 3 8 1
1.4
1.7 2 3
Domain: input x x > -1
Range: output y y > 0

5. Domain: input x x > 0
Vertical stretch factor of 2
Range: output y y > 0

6. Transformation examples.