To find the equation of the
Answer to Problem 38WE
The equation of the circle are
Explanation of Solution
Given information:
The circle has center
Calculation:
The equation of the circle can be obtained as
The standard form of the equation of a circle with center is
Where
So,
Let,
Since the tangent to the x- axis so,
Therefore,
First find the radius
Put the values of
Again put the values of
Hence,
The equation of the circle are
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 and adjust the windows according to the graph.
The graph is obtained as:
Interpretation :
From the above graph, it can be observed that the center of a circle is
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