Domain and Range STAAR Review

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Find the domain and range of the function pictured here. Click graph to enlarge.

What is the domain and range of the graph?

• D: { x | 0 < x < 3}

  R: { y | 0 < y < 36}

• D: { y | 0 < y < 3}

  R: { x | 0 < x < 36}

• D: { x | 0 < x < 36}

  R: { y | 0 < y < 3}

• D: { y | 0 < y < 36}

  R: { x | 0 < x < 3}

What is the domain and range of the graph?

• D: { x | 0 < x < 3}

  R: { y | 0 < y < 36}

• D: { y | 0 < y < 3}

  R: { x | 0 < x < 36}

• D: { x | 0 < x < 36}

  R: { y | 0 < y < 3}

• D: { y | 0 < y < 36}

  R: { x | 0 < x < 3}

Select TWO correct answers.

Domain

​ (a)  

Range

​ (b)  

• The domain of the function is {0,1,2,3,4,5}

• The range of the function {0,96,192,288,384,480}

• The domain of the function is all real numbers

• The domain of the function {0,96,192,288,384,480}

• The range of the function {0,1,2,3,4,5}

• The range of the function is all real numbers.

• D: {0, 1, 2, 3, 4, 5}

• R: {0, 96, 192, 288, 384, 480}

• D: all real numbers

• R: {0, 1, 2, 3, 4, 5}

• {0, 96, 192, 288, 384, 480}

• D: {0, 96, 192, 288, 384, 480}

• R: all real numbers

Answer explanation

Domain - x values

Range - y values

Real-world examples = apply common sense and judgements

Match the following

• DECREASING

• y ≤ 2

• DOMAIN

• ALL REAL NUMBERS

• NO

  MATCH

• –3 < x < –1

  OR

  x > 2

• RANGE

• x < 1

  OR

  x > 3

• NEGATIVE

• x < 3

  OR

  –1 < x < 2