STAAR Domain/Range

• All real numbers that are greater than or equal to 0 and less than or equal to 30

• All real numbers that are greater than or equal to 0 and less than or equal to 60

• All real numbers that are greater than or equal to 900

• All real numbers that are less than or equal to 900

A part of an exponential function is graphed on the grid. Which statements are true about the domain and range of the part of the function shown? Select TWO correct answers.

• The domain is the set of all real numbers.

• The range is the set of all real numbers greater than or equal to 2 and less than or equal to 5.

• The domain is the set of all real numbers greater than or equal to 1 and less than or equal to 8.

• The range is the set of all real numbers greater than or equal to 1 and less than or equal to 8.

• The domain is the set of all real numbers greater than or equal to 2 and less than or equal to 5.

A swimming pool can be rented for $110 per hour. The pool can be rented for either 1 hour or 2 hours. The cost in dollars to rent the pool is a function of the number of hours the pool is rented. What are the domain and range of the function for this situation?

• Domain: {110, 220} Range: {1, 2}

• Domain: {1, 2}

  Range: {110, 220}

• Domain: all real numbers

  Range: all real numbers

• Domain: all integers greater than or equal to zero

  Range: all integers greater than or equal to zero

A part of quadratic function g is graphed on the grid. What is the domain of the part of the function shown?

• All real numbers greater than or equal to -4 and less than or equal to 5

• All real numbers greater than or equal to -1 and less than or equal to 3

• All real numbers greater than or equal to -6 and less than or equal to 6

• All real numbers greater than or equal to -2 and less than or equal to 3

An athlete ran at a constant speed for 12 seconds. The part of the linear function shown represents the distance the athlete ran in yards, y, as a function of the time in seconds, x. What is the domain of the function for this situation?

• 0 ≤ x ≤ 14

• 0 ≤ x ≤ 12

• 0 ≤ y ≤ 110

• 0 ≤ y ≤ 100

Which statement about the function r(x) = 5x² - 20x + 12 is true?

• The domain of the function is x ≥ 2.

• The range of the function is r(x) ≥ -8.

• The domain of the function is x ≥ 0.

• The range of the function is r(x) ≤ 12.

• The domain is all real numbers greater than or equal to 4.

• The range is all real numbers less than 0.

• The domain is all real numbers less than or equal to 0.

• The range is all real numbers.

• All real numbers less than or equal to 3/2

• All real numbers less than or equal to 19/4

• All real numbers greater than or equal to 3/2

• All real numbers greater than or equal to 19/4

Which graph best represents a quadratic function with a range of all real numbers greater than or equal to 3?

• 
• 
• 
• 

The domain is...

• 
• 
• 
•