AnswersEAP-Algebra Functions and Data Analysis A CRModeling with Systems of Linear Inequalities

Modeling with Systems of Linear Inequalities Answers

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3

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A
At least 2 copies are required per tour.
B
More than 2 copies are required per tour.
C
The number of confirmed parties must be at least double the number of required copies.
D
The number of confirmed parties must be no more than double the number of required copies.
4

Consider this system of inequalities.x + y ≤ –3y < Which graph shows the solution for this system?

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A
Option
B
Option
C
Option
D
Option
11

One winter day, the outside temperature, y, never dropped below −1°. The inside temperature, x, of a car was always at least 4° warmer than the outside temperature. Which graph represents the solution to the system of inequalities that models this situation?

A
Option
B
Option
C
Option
D
Option
12

On a coordinate plane, 2 straight lines are shown. The first solid line has a positive slope and goes through (negative 1, negative 3) and (0, 0). Everything to the right of the line is shaded. The second dashed line has a negative slope and goes through (negative 2, 3) and (1, negative 3). Everything to the right of the line is shaded.

Question illustration
A
y ≤ 3x y > –2x – 1
B
y > 3x y ≤ –2x – 1
C
y < –3x y ≥ 2x – 1
D
y > –3x y ≤ 2x – 1
13

Which statements must be true about their heights? Select three options.

A
Darius is at least 36 inches tall.
B
Darius is at most 36 inches tall.
C
William’s height is less than 68 inches.
D
William’s height is at least 68 inches.
E
Darius is less than 4 inches taller than twice William’s height.
F
Darius is no more than 4 inches taller than twice William’s height.
14

A city determines that a planned community must have at least 4 acres of developed and open space, and the difference between the number of developed acres, y, and the number of open acres, x, can be no more than 1. Which graph represents the system of inequalities for this scenario?x + y ≥ 4y – x ≤ 1

A
Option
B
Option
C
Option
D
Option

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