Questions: Graph the circle given below by moving the key points:
(x-4)^2+(y+3)^2=4
To graph the circle, drag the center point to the desired location, and then drag the radius point until the radius is the desired number of units.
Transcript text: Graph the circle given below by moving the key points:
\[
(x-4)^{2}+(y+3)^{2}=4
\]
To graph the circle, drag the center point to the desired location, and then drag the radius point until the radius is the desired number of units.
Solution
Solution Steps
Step 1: Identify the Center of the Circle
The given equation of the circle is \((x - 4)^2 + (y + 3)^2 = 4\). This is in the standard form \((x - h)^2 + (y - k)^2 = r^2\), where \((h, k)\) is the center of the circle and \(r\) is the radius. From the equation, we can identify:
\(h = 4\)
\(k = -3\)
So, the center of the circle is \((4, -3)\).
Step 2: Determine the Radius of the Circle
The right side of the equation is \(4\), which represents \(r^2\). To find the radius \(r\), we take the square root of \(4\):
\[ r = \sqrt{4} = 2 \]
Step 3: Graph the Circle
To graph the circle:
Place the center of the circle at \((4, -3)\) on the coordinate plane.
From the center, measure a distance of 2 units in all directions to draw the circle.
Final Answer
The circle is centered at \((4, -3)\) with a radius of 2 units.