Relations and Functions

Question 1

What is the range of the relation? ✔ 46-4-6

Revolt · Accepted Answer

✔ 4

Question 2

The mapping diagram above: ✔ functionnot a function

Revolt · Accepted Answer

✔ function

Question 3

Suppose that you could replace the ordered pair (1, 4) to make the relation R (shown left) into a function. Which ordered pair would work?

Revolt · Accepted Answer

(4, 15)

Question 4

f(0) = ⇒ 3

Revolt · Accepted Answer

3

Question 5

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 6

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

Revolt · Accepted Answer

✔ c, the total cost (in dollars)

Question 7

Use the drop downs to determine which symbols would complete the inequality for the range. −2 ___(c)___ y ___(d)___ 5 (c) (d)

Revolt · Accepted Answer

Selection 1: less than or equal to; Selection 2: less than

Question 8

Is the relation a function? ✔ yesno

Revolt · Accepted Answer

✔ yes

Question 9

✔ functionnot a function

Revolt · Accepted Answer

✔ function

Question 10

What is the special name of f(0)? the x-intercept✔ the y-intercept

Revolt · Accepted Answer

✔ the y-intercept

Relations and Functions Answers