AnswersWV-Algebra I CRSolving Systems of Linear Inequalities

Solving Systems of Linear Inequalities Answers

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What did you include in your response? Check all that apply.

A
The point (1, –5) satisfies the first inequality but not the second inequality.
B
The point (1, –5) lies in the shaded area of the first inequality, but not the second inequality.
C
The point (1, –5) lies on the dashed line of the second inequality, which is not inclusive.
D
The point (1, –5) is not in the solution set of the system of inequalities.
76185

(–4, –2)✔ (–1, –2)(1, 4)(2, 2)

A
(–4, –2)
B
✔ (–1, –2)
C
(1, 4)
D
(2, 2)
76186

Graphically, a point is a solution to a system of two inequalities if and only if the point

A
lies in the shaded region of the top inequality, but not in the shaded region of the bottom inequality.
B
lies in the shaded region of the bottom inequality, but not in the shaded region of the top inequality.
C
lies in the shaded regions of both the top and bottom inequalities.
D
does not lie in the shaded region of the top or bottom inequalities.
76188

Which is the graph of the system x + 3y > –3 and y < x + 1?

Question illustration
A
[Image: On a coordinate plane, 2 dashed lines are shown. T...]
Option A
B
[Image: On a coordinate plane, 2 dashed lines are shown. T...]
Option B
C
[Image: On a coordinate plane, 2 dashed lines are shown. T...]
Option C
D
[Image: On a coordinate plane, 2 dashed lines are shown. T...]
Option D
76189

Which system of inequalities with a solution point is represented by the graph?

A
y > 2x – 2 and y < x – 1; (3, 1)
Option A
B
y > 2x – 2 and y < x + 1; (–3, 1)
Option B
C
y > 2x + 2 and y < x – 1; (3, 1)
Option C
D
y > 2x + 2 and y < x + 1; (–3, 1)
Option D
76192

Determine the relationship between the point (1, –5) and the given system of inequalities.y ≤ 3x + 2y > –2x – 3Explain your answer both algebraically and graphically.

Answer:

Algebraically, substituting (1, -5) into the inequalities yields -5 ≤ 3(1) + 2, which simplifies to -5 ≤ 5 (true), and -5 > -2(1) - 3, which simplifies to -5 > -5 (false). Graphically, the point (1, -5) lies within the shaded region of the first inequality's solid line but lies directly on the dashed boundary line of the second inequality. Because points on a dashed line are excluding, and the second inequality is not satisfied, (1, -5) is not a solution to the system.

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