Special Linear Relationships Answers

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Figure 3: cubes

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

[___] pounds of apples

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The function [___] represents the sequence.

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?Yes, y = 2x.Yes, y = 20x.No, y = x + 10.No, y = x + 20.

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?f(n) = 0.6n + 1.9f(n) = 0.6n + 2.5f(n + 1) = f(n) + 1.9f(n + 1) = f(n) – 0.6

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Consider the sequence of numbers: , , 1, 1 , 1, . . . Which statement is a description of the sequence?The sequence is recursive, where each term is greater than its preceding term.The sequence is recursive and can be represented by the function f(n + 1) = f(n) + .The sequence is arithmetic, where each pair of terms has a constant difference of .The sequence is arithmetic and can be represented by the function f(n + 1) = f(n).

[___] per pound