Chapter 9: Exercises with Answers

Section 9.1 The Square Root Function 883
9. Domain = (−∞, 3], Range = [0, ∞).
15. Domain = [−5, ∞), Range = [1, ∞).
x −6 −1 2 3
f(x) 3 2 1 0
f(x)= √ 3−x
y
10
y
10
f(x)= √ x+5+1
x
10
x
10
17. Domain = [−4, ∞), Range = (−∞, 0].
y
10
11. Domain = [0, ∞), Range = [3, ∞).
y
10
f(x)= √ x+3
x
10
x
10
f(x)=− √ x+4
19. Domain = [0, ∞), Range = (−∞, 3].
y
10
13. Domain = [2, ∞), Range = [0, ∞).
y
10
f(x)= √ x−2
f(x)=− √ x+3
x
10
x
10
Version: Fall 2007