To graph : the line in the system and determine whether the system is consistent or not.
Explanation of Solution
Given information :
Graph: Sketch the graph using graphing utility.
Step 1: Press WINDOW button to access the Window editor.
Step 2: Press
Step 3: Enter the expression
Step 4: Press GRAPH button to graph the function.
The graph is obtained as:
The system is consistent and dependent because the line of given equationdidn’t coincideeach other and it has infinite number of point in common
To check the solution solved both the equation algebraically is obtained as:
Let,
Because
Hence, the system has infinitely many solutions.
Interpretation : From the above graph, it can be observed thatthe system is consistent and dependent because the line of given equation didn’t coincide each other and it has infinite number of point in common
Chapter 7 Solutions
Precalculus with Limits: A Graphing Approach
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