Functions and Review

Is the relation a function? Why.

• Yes, because the x-value 11 has two y-values pair with it.
• Yes, because each x-value has only one y-value paired with it.
• No, because the x-value 11 has two y-values pair with it.
• No, because each x-value has only one y-value paired with it.

Is this graph a function or not a function? 

• Function
• Not a Function

Match the following

• 1200

• h(3)

• 1584

• h(4)

• 1344

• h(2)

• 1536

• h(5)

• 1456

• h(1)

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)

• -x+6

• 2x-6

• x+8

• x-12

• 2
• 8
• 1
• 3
• 4
• 6
• 7
• 9

The length and width of a rectangle are shown below. Which expression is equivalent to the perimeter of the rectangle?

Which sets of points represent functions? Choose TWO correct answers.

• {(3,2), (-3,-2), (4,5), (-4,-5), (0,8)}

• {(3,2), (3,-2), (4,5), (4,-5), (0,8)}

• {(2,5), (-3,-5), (4,5), (8,-5), (0,8)}

• {(3,2), (-3,-2), (4,5), (4,-5), (3,8)}

• {(3,2), (-3,-2), (4,5), (-4,-5), (3,8)}

Which table does not represent a function?

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Which representation shows a function?

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