6.8 Practice Worksheet Graphing Radical Functions HW Name: _________________________________
Describe the transformation of each of the following square root functions from the parent function
.yx
1.
43yx
2.
18yx
3.
2 3 5yx
4.
9yx
5.
35yx
6.
81yx
Graph the following square root functions. State the domain and range of each.
7.
12yx
8.
D: D:
R: R:
9.
10.
24yx
D: D:
R: R:
Describe the transformation of each of the following cube root functions from the parent function
3
.yx
Graph each
function.
11.
3
21yx
12.
3
13yx
13.
3
34yx
14.
3
21yx
15. What is the domain and range for all cube root functions? _________________________________________
Use your graphing calculator to find the solution to the following.
16. When you look at the ocean, the distance d (in miles) you can see to the horizon can be modeled by
1.22da
where a is your altitude (in feet above sea level). Determine at what altitude you can see 10 miles.
17. To find the radius r of a sphere of volume V, use the equation
3
3
4
V
r
. A balloon used for advertising special
events has a volume of 225 ft
3
. What is the radius of the balloon?
18. Write an equation for the function whose graph is shown.