Graphing a Linear System

Question 1
Which linear system could the graph represent?
Responses
A x + y = 2
2x + 2y = 8x + y = 2 2x + 2y = 8
B 4x + 4y = 4
x + y = 14x + 4y = 4 x + y = 1
C −x + y = 2
x + 2y = 2−x + y = 2 x + 2y = 2
D 2x − y = 4
x + 2y = −32x − y = 4 x + 2y = −3
Question 2
The system represented by the graph has how many solutions?
Responses
A 11
B 00
C 22
D infinitely manyinfinitely many
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1 answer

To analyze the question, I would need to consider the characteristics of the graphs for each option provided. However, as I currently do not have an accompanying image or graph to reference, I'll guide you through how to evaluate the options given the nature of linear systems and their graphs.

Question 1: Which linear system could the graph represent?

To find out which linear system corresponds to the graph, here are the steps you can take:

  1. Identify the Number of Lines: Check the graph to see how many lines are shown. This can tell you how many equations are in the system.

    • If there are two lines that intersect, it represents a single solution.
    • If the lines are parallel, it represents no solutions.
    • If the lines overlap completely, it indicates infinitely many solutions.
  2. Look for Intersections: If the graph shows a single intersection point, that seeks a linear system that corresponds to two distinct lines.

  3. Examine Specific Lines: Compare the slopes and the y-intercepts from the lines in the provided options (if there are not distinct graphs). This might help in determining which equations are represented.

Question 2: The system represented by the graph has how many solutions?

To determine the number of solutions:

  1. Identify Graph Characteristics:
    • No solutions: If the lines represented in the graph are parallel.
    • One solution: If the lines intersect at exactly one point.
    • Infinitely many solutions: If the lines are the same (overlapping completely).

Without seeing the graph or the behavior of the lines, it's impossible to definitively choose the correct response.

If you can describe the graph you are examining for the linear system—such as the number of lines, their positions (whether they intersect, overlap, or are parallel)—I can provide a more targeted analysis.

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