Functions Review

Choose all the graphs that do not represent a function.

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Which table does not represent a function?

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Identify the range of the graph.

• {2, -3, -5}

• {-1,3}

The function for the table is Y = x-6

What is the missing number?

• 12

• 10

• 14

• 13

How do you write an ordered pair?

• (X,X)
• (Y,X)
• (X,Y)
• (Y,Y)

Which sets of ordered pairs are functions?

Choose all that apply.

• (9, -1), (8, -2), (7, -3), (6, -4)

• (5, -1), (5, -2,), (5,12), (5, 0)

• (4, 2), (-4, 2), (2, 4), (-2, -4)

• (1, -4), (2, -4,), (3, -4), (4, -4)

• (5, 8), (4, 9), (5, 9), (4, 8)

What is at (6,7)?

• the moon

• the sun

• a blue planet

• a robot

Which graph represents a function?

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Determine whether the relation shown here is a function. Explain your answer.

• function, an input has 1 output

• function, an input has 2 different outputs

• function, no output has 2 different inputs

• not a function, an input has 2 different outputs

Which function matches the mapping shown?

• f(x) = x + 4

• f(x) = 2x

• f(x) = 4x

• f(x) = x⁴