DESCRIBING THE DOMAIN AND RANGE OF SQUARE ROOT FUNCTION WORKSHEET

Describe the domain of the function.

Problem 1 :

y = 8√x

Problem 2 :

y = 4 + √-x

Problem 3 :

y = -√(x - 3)

Problem 4 :

y = √(x + 2) - 2

Problem 5 :

y = √(-x - 1)

Problem 6 :

y = √(2x) + 7

Problem 7 :

y = (1/2)√(-x - 2)

Answer Key

1) Domain is [0, ∞). The range is [0, ∞).

2) Domain is (-∞, 0]. The range is [4, ∞).

3) Domain is [3, ∞).The range is (-∞, 0]

4) Domain is [-2, ∞).The range is [-2, ∞).

5) Domain is (-∞, -1]. The range is [0, ∞).

6) Domain is [0, ∞). The range is [7, ∞)

7) Domain is (-∞, -2]. The range is [0, ∞).