Domain and Range Precalculus

Identify the domain of the following function:  f(x) = √(2x+5)

• [-5,∞)

• (-∞,2.5)

• [-2.5,∞)

• (-∞,0)

Identify the range of the following function:  f(x) = √(2x+5)

• [0,∞)

• (-∞,0)

• [5,∞)

• (-∞,-2)

Which set of values is a function?

• (9,5) (10,5) (9,-5) (10,-5)

• (3,4) (4,-3) (7,4) (3, 8)

• (6,-5) (7, -3) (8, -1) (9, 1)

• (2, -2) (5, 9) (5, -7) (1, 4)

Tags

CCSS.8.F.A.1

What is the domain of the function?

• x≥0

• y≥0

• All real numbers

• {0, 1, 2, 3, 4,...}

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.B.5

What is the RANGE?

• (-∞, +∞)

• (-2, +∞)

• [-2, +∞)

• (-∞, 0) U (0, +∞)

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.B.5

For the function {(0,1), (1,-3), (2,-4), (-4,1)}, write the domain and range.

• D: {1, -3, -4,}
  R: {0, 1, 2, -4}

• D:{0, 1, 2, -4}
  R:{1, -3, -4}

• D:{0, 1, 2, 3, 4}
  R:{1, -3, -4}

• D:{0, 1, 2, 3}
  R:{0, 1, 2, 3, 4}

• All real numbers greater than or equal to 1

• All real numbers except 1

• x = 1

• All real numbers

Using the vertical line test. Is this a function?

• Yes

• No

What is g(-2) if:

• -7

• 7

• 1

• -1

Tags

CCSS.HSF.IF.A.2

What is the range of the function?

• ( - ∞ , 2 )

• ( - ∞ , 2 ]

• ( - ∞ , - 3 ) U ( - 3 , 2 )

• ( - ∞ , - 3 ) U ( - 3 , 2 ]

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.B.5