Relations and Functions

Question 1

The graph above: ✔ one-to-one functionfunction (but not one-to-one) relation (but not a function)

Revolt · Accepted Answer

✔ one-to-one function

Question 2

What is the dependent (output) variable?n, the number of necklaces$6, the shipping cost✔ c, the total cost (in dollars)

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✔ c, the total cost (in dollars)

Question 3

Use the drop downs to determine which symbols would complete the inequality for the range.

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✔ less than or equal to; Use the drop downs to determine which symbols would complete the inequality for the range. −2 ___(c)___ y ___(d)___ 5 (c) (d): less than or equal to; Use the drop downs to determine which symbols would complete the inequality for the range. −2 ___(c)___ y ___(d)___ 5 (c) (d): less than

Question 4

Is the relation a function? ✔ yesX no

Revolt · Accepted Answer

X no

Question 5

✔ functionnot a function

Revolt · Accepted Answer

✔ function

Question 6

What is the domain? n>=0✔ n=0, 1, 2, 3,...all real numbers

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✔ n=0, 1, 2, 3,...

Question 7

Explain why your relation is a function.

Revolt · Accepted Answer

My relation is a function because each student is paired with only one age. No student appears with two different ages, so every domain element matches exactly one range element.

Question 8

The table above: function✔ not a function

Revolt · Accepted Answer

✔ not a function

Question 9

Which equation expresses the order’s total cost, c, as a function of the number of necklaces, n?n(c)=7c + 6n(c)=7c - 6✔ c(n)=7n + 6c(n)=7n - 6

Revolt · Accepted Answer

✔ c(n)=7n + 6

Relations and Functions Answers

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