10/06/2023 Review

Which relation describes a function? What makes it a function?

• {(-2,3),(-2,5),(-6,7)} Each member of the range is unique.

• {(2,3),(3,3),(3,4)} Each member of the domain and range is positive.

• {(2,3),(3,3),(3,4)} Each member of the domain and range is a real number.

• {(-2,3),(-3,3),(-4,3)} Each member of the domain is assigned exactly one member of the range.

Which graph represents a function?

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Which table does NOT represent 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

Find the slope of the line that passes through the points (2, 4) and (6, 12)

• 1/2
• -1/2
• 2
• -2

Tags

A.FGR.2.2

Find the slope from the table:

• -2/5
• 5/-2
• 5/2
• 2/5

Tags

A.FGR.2.2

Match the following

• -4

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• -1

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• undefined

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• -5

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What is the range of the function shown?

• {10, 19, 26}
• {-3, 0, 4}
• {-3, 0, 4, 10, 19, 26}
• {0, 16}

What is the domain of the function graphed?

• x < 5
• x ≥ 1
• x > 0
• All real numbers