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Use the Information provided to write the equation of the circle in the format (x-h)^2+(y-k)^2=___:

Center lies in the first quadrant
Tangent to x = 8, y = 3, and x = 14

Sagot :

Answer:

### Step-by-Step Solution:

1. Identify the center coordinates ((h,k):

- Since the circle is tangent to ( x = 8 ) and ( x = 14 ), the horizontal distance from the center to these lines is the radius ( r ).

- Therefore, we can write:

[tex] \[

|h - 8| = r \quad \text{and} \quad |h - 14| = r

\][/tex]

- Because the circle is tangent to both lines, the distance between the lines must be twice the radius:

[tex] \[

14 - 8 = 2r \implies r = 3

\]

[/tex]

- Solving for ( h ), we have:

[tex] \[

h - 8 = 3 \implies h = 11

\][/tex]

2. identify the vertical coordinate ( k ):

- Since the circle is tangent to ( y = 3 ), the vertical distance from the center to this line is also the radius ( r ):

[tex] \[

k - 3 = r \implies k - 3 = 3 \implies k = 6

\][/tex]

3. Summarize the center and radius:

- The center is

[tex]\( (h, k) = (11, 6) \)[/tex]

- The radius is

[tex] \( r = 3 \)[/tex]

4. Write the equation of the circle:

Using the standard form

[tex]\((x-h)^2 + (y-k)^2 = r^2\), \: we \: get:[/tex]

[tex]\[

(x - 11)^2 + (y - 6)^2 = 3^2

\][/tex]

[tex] \[

(x - 11)^2 + (y - 6)^2 = 9

\][/tex]

Hence, the equation of the circle is:

[tex]\[

(x - 11)^2 + (y - 6)^2 = 9

\][/tex]