Domain & Range of Square Roots

• domain, but flip # to get answer

• range, but flip # to get answer

• domain, but don't flip #

• range, but don't flip #

• domain, but flip # to get answer

• range, but flip # to get answer

• domain, but don't flip #

• range, but don't flip #

• nothing

• x flips which means domain is less than or equal to

• y flips which means range is less than or equal to

• both x and y flip

Identify the Range

• (- ∞, -2 ]

• [ -2, ∞ )

• All Real Numbers

• [ 0, ∞)

Find the domain and range of the function
Hint:  Use a scratch graph to help you visualize things. 

• Domain: (-∞, ∞)  Range: [-∞, 4]
• Domain: [1, ∞)  Range: (-∞, 4]
• Domain: [-1. ∞) Range: [4, ∞) 
• Domain: [4, ∞) Range: [-1,∞) 

What is the DOMAIN of this square root function?

• all real numbers

What is the RANGE of this square root function?

• all real numbers

Which statement about the domain and range of both equations must be true?

• The domain of the red curve is the same as the range of the blue curve, all real numbers less than or equal to 0, and the range of the red curve is the same as the restricted domain of the blue curve, all real numbers less than or equal to 0.

• The domain of the red curve is the same as the restricted domain of the blue curve, all real numbers less than or equal to 0, and the range of the red curve is the same as the range of the blue curve, all real numbers less than 0.

• The domain of the red curve is the same as the range of the red curve, all real numbers greater than or equal to 0, and the range of the red curve is the same as the restricted range of the blue curve, all real numbers greater than or equal to 0.

• The domain of the red curve is the same as the restricted domain of the blue curve, all real numbers greater than or equal to 0, and the range of the red curve is the same as the range of the blue curve, all real numbers greater than or equal to 0.

When writing the domain and range in interval notation of a square root function, an exact number is denoted by what?

• parenthesis

• brackets

• curly brackets

• quotations