Special Linear Relationships

Question 1

A 3-pound bag of apples costs $5.25. What is the unit price of a pound of apples?

Revolt · Accepted Answer

per pound: $1.75; pounds of apples: 10; : y = 1.75x

Question 2

Luis uses cubes to represent each term of a pattern based on a recursive function. The recursive function defined is f(n + 1) = f(n) + 4, where n is an integer and n ≥ 2. The number of cubes used in each of the first two figures is shown below. How many cubes does Luis use in the third, fourth, and fifth figures of the pattern? Fill in the blanks.

Revolt · Accepted Answer

: 17; : 21; : 25

Question 3

A prepaid cell phone charges a preset number of minutes to use text messaging. The graph represents y, the number of minutes used for x, the number of text messages sent and received. Is there a direct variation? Which equation represents the relationship?

Revolt · Accepted Answer

D: No, y = x + 20.

Question 4

This sequence represents the diameters of circles used to create an art project:2.5 cm, 3.1 cm, 3.7 cm, 4.3 cmLet f(n) represent diameter in centimeters and n the term number in the sequence. Which equation represents the sequence of diameters?

Revolt · Accepted Answer

A: f(n) = 0.6n + 1.9

Question 5

A 3-pound bag of apples costs $5.25. What is the unit price of a pound of apples?

Revolt · Accepted Answer

B: ✔  $1.75

Question 6

What other points are on the line of direct variation through (5, 12)? Check all that apply.(0, 0)(2.5, 6)(3, 10)(7.5, 18)(12.5, 24)(15, 36)

Revolt · Accepted Answer

B: (2.5, 6)

Question 7

Consider the sequence of numbers: , , 1, 1 , 1, . . . Which statement is a description of the sequence?

Revolt · Accepted Answer

D: The sequence is arithmetic and can be represented by the function f(n + 1) = f(n).

Question 8

Question 8

Revolt · Accepted Answer

21

Question 9

8 9✔ 10 11

Revolt · Accepted Answer

C: ✔  10

Question 10

Question 10

Revolt · Accepted Answer

25

Special Linear Relationships Answers

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