Worksheet: Absolute Value Functions

In this worksheet, we will practice evaluating and graphing absolute value functions and identifying their domain and range.

Q1:

Determine the domain and the range of the function 𝑓(𝑥)=|𝑥1|+1.

  • AThe domain is and the range is [1,).
  • BThe domain is [1,) and the range is .
  • CThe domain is (1,) and the range is {1}.
  • DThe domain is {1} and the range is (1,).

Q2:

Find the range of the function 𝑓(𝑥)=|2𝑥2|.

  • A { 1 }
  • B { 1 }
  • C
  • D [ 1 , )
  • E [ 0 , )

Q3:

Find the range of the function 𝑓(𝑥)=|2𝑥+1|.

  • A
  • B [ 0 , )
  • C 1 2
  • D 1 2 ,

Q4:

Find the domain of the function 𝑓(𝑥)=|3𝑥8|.

  • A [ 0 , )
  • B 8 3 ,
  • C 8 3
  • D

Q5:

Find the domain and range of the function 𝑓(𝑥)=|3𝑥1|+3𝑥+5.

  • AThe domain is , and the range is 13,.
  • BThe domain is , and the range is [6,).
  • CThe domain is 13,, and the range is [6,).
  • DThe domain is 13,, and the range is .

Q6:

Determine the domain and the range of the function 𝑓(𝑥)=|5𝑥+5|9.

  • AThe domain is (9,), and the range is {1}.
  • BThe domain is [9,), and the range is .
  • CThe domain is , and the range is [9,).
  • DThe domain is {1}, and the range is (9,).
  • EThe domain is , and the range is [0,).

Q7:

Given that 𝑎 is a constant, what is the domain of the function 𝑓(𝑥)=|𝑥+𝑎|?

  • A ( , 𝑎 ]
  • B [ 𝑎 , )
  • C
  • D 𝑎

Q8:

Find the domain and range of the function 𝑓(𝑥)=4|𝑥5|1.

  • AThe domain is (,1] and the range is .
  • BThe domain is {5} and the range is {1}.
  • CThe domain is and the range is (,1).
  • DThe domain is and the range is (,1].

Q9:

Given that 𝑎 is a constant, what is the domain of the function 𝑓(𝑥)=|𝑥𝑎|?

  • A
  • B 𝑎
  • C [ 𝑎 , )
  • D ( , 𝑎 ]

Q10:

Find the domain of the function 𝑓(𝑥)=|8𝑥+7|.

  • A [ 0 , )
  • B 7 8
  • C 7 8 ,
  • D
  • E 7 8

Q11:

Determine the domain and the range of the function 𝑓(𝑥)=|𝑥+1|+1.

  • AThe domain is and the range is [1,).
  • BThe domain is [1,) and the range is .
  • CThe domain is (1,) and the range is {1}.
  • DThe domain is {1} and the range is (1,).

Q12:

Find the range of the function 𝑓(𝑥)=|6𝑥4|.

  • A
  • B [ 0 , )
  • C 2 3
  • D 2 3 ,

Q13:

Find the range of the function 𝑓(𝑥)=|𝑥+8|.

  • A
  • B [ 0 , )
  • C { 8 }
  • D [ 8 , )

Q14:

Find the range of the function 𝑓(𝑥)=|2𝑥+1|.

  • A 1 2
  • B 1 2
  • C
  • D 1 2 ,
  • E [ 0 , )

Q15:

Find the range of the function 𝑓(𝑥)=|2𝑥+2|.

  • A { 1 }
  • B { 1 }
  • C
  • D [ 1 , )
  • E [ 0 , )

Q16:

Find the domain of the function 𝑓(𝑥)=|5𝑥+5|.

  • A [ 0 , )
  • B [ 1 , )
  • C { 1 }
  • D

Q17:

Find the domain of the function 𝑓(𝑥)=|4𝑥+5|.

  • A [ 0 , )
  • B 5 4 ,
  • C 5 4
  • D

Q18:

Use the graph to find the solution set of the inequality 𝑓(𝑥)<𝑔(𝑥) in .

  • A [ 0 , 6 ]
  • B ( 0 , 6 )
  • C ( 0 , 6 )
  • D [ 0 , 6 ]

Q19:

A body was moving with a uniform velocity of magnitude 5 cm/s from the point 𝐴 to the point 𝐶 passing through the point 𝐵 without stopping. The distance between the body and the point 𝐵 is given by 𝑑(𝑡)=5|8𝑡|, where 𝑡 is the time in seconds, and 𝑑 is the distance in cm. Determine the distance between the body and the point 𝐵 after 5 seconds and after 11 seconds.

  • A 15 cm, 15 cm
  • B 3 cm, 40 cm
  • C 5 cm, 5 cm
  • D 15 cm, 5 cm

Q20:

A body moved from position 𝐴 to position 𝐶 passing through position 𝐵 with a uniform velocity of 3 cm/s and without stopping. If the distance between the body and position 𝐵 is given by 𝑑(𝑡)=3|7𝑡|, where 𝑡 is the time in seconds, and 𝑑 is the distance in centimeters, determine the time interval during which the body is less than 9 cm from 𝐵.

  • A [ 4 , 1 0 ]
  • B ( 4 , 1 0 )
  • C ( 4 , )
  • D ( 1 0 , )

Q21:

Use the graph to find the solution set of the inequality 𝑓(𝑥)𝑔(𝑥).

  • A [ 4 , 2 ]
  • B [ 4 , 2 ]
  • C ( 4 , 2 )
  • D ( 4 , 2 )

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