Domain and Range and Functions Ordered Pairs

Give the range of the set of ordered pairs: (2, 11), (9, -3), (7, 21), (-8, 6)

• {2, 9, 7, -8}

• {11, -3, 21, 6}

• -8 < x < 9

• -3 < y < 21

Which set of ordered pairs is not a function?

• (1, 3), (2, 7), (3, 8), (4, 11)

• (2, 3), (4, 9), (3, 8), (4, 15)

• (1, 2), (3, 5), (6, 9), (7, 11)

• (-9, 4), (-6, 3), (-2, 8), (0, 21)

Tags

CCSS.8.F.A.1

For the set of ordered pairs (x, f(x)): (2, 10), (4, 20), (7, 35), (11, 55), what is the function f(x)?

• f(x) = x + 8

• f(x) = 10x

• f(x) = 7x - 12

• f(x) = 5x

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

What is a function?

• A relation that maps every domain value to exactly one range value.

• A relation that maps every range value to exactly one domain value.

• Any set of ordered pairs.

• Any graph of x and y values.

Tags

CCSS.8.F.A.1

• Domain: {-2}
  Range: all real numbers
• Domain: { -6, 3, 4, 5 }
  Range: {-2}
• Domain: x
  ≥ -6
  Range: y = -2
• Domain: {-2}
  Range: { -6, 3, 4, 5 }

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

• Domain: x ≥ -2
  Range: y ≥ -4
• Domain: { 3, -1, 2, 1 }
  Range: { -4, 4, 6, 0 }
• Domain: { -2, -1, 1, 3 }
  Range: { -4, 0, 4, 6 }
• Domain: all real numbers
  Range: All real numbers

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

What is true about the relation?

• It represents a function.

• Its domain is {-2, 0, 1, 3}.

• Its range is {-2, 0, 1, 3}.

• The data is continuous.

Tags

CCSS.8.F.A.1

• A
• B
• C
• D

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

Is this set of ordered pairs a function or not a function? 

• Function

• Not a Function 

Tags

CCSS.8.F.A.1

What is the test to determine if a graph represents a function?

• Horizontal line test

• Vertical line test

• Heidelberg Uncertainty Test

• Obi Wan Kenobi Test