Bowman Powers
08/26/2023 · Middle School
Find the intercepts of the circle. \[ (x-2)^{2}+(y+7)^{2}=9 \] Select the correct choice below and, if necessary, fill in the answer box within your choice. A. The \( x \)-intercept(s) is/are (Use a comma to separate answers as needed. Type an exact answer, using radicals as needed.)
UpStudy ThothAI Solution
Tutor-Verified Answer
Step-by-step Solution
To find the intercepts of the circle given by the equation
\[
(x-2)^{2}+(y+7)^{2}=9,
\]
we will first find the \( x \)-intercepts by setting \( y = 0 \) and solving for \( x \).
1. Substitute \( y = 0 \) into the equation:
\[
(x-2)^{2} + (0 + 7)^{2} = 9.
\]
This simplifies to:
\[
(x-2)^{2} + 49 = 9.
\]
2. Rearranging gives:
\[
(x-2)^{2} = 9 - 49,
\]
\[
(x-2)^{2} = -40.
\]
Since the left side is a square and the right side is negative, there are no real solutions for \( x \). Therefore, there are no \( x \)-intercepts.
Next, we will find the \( y \)-intercepts by setting \( x = 0 \) and solving for \( y \).
1. Substitute \( x = 0 \) into the equation:
\[
(0 - 2)^{2} + (y + 7)^{2} = 9.
\]
This simplifies to:
\[
4 + (y + 7)^{2} = 9.
\]
2. Rearranging gives:
\[
(y + 7)^{2} = 9 - 4,
\]
\[
(y + 7)^{2} = 5.
\]
3. Taking the square root of both sides:
\[
y + 7 = \pm \sqrt{5}.
\]
4. Solving for \( y \):
\[
y = -7 + \sqrt{5} \quad \text{and} \quad y = -7 - \sqrt{5}.
\]
Thus, the \( y \)-intercepts are:
\[
\left(0, -7 + \sqrt{5}\right) \quad \text{and} \quad \left(0, -7 - \sqrt{5}\right).
\]
In conclusion, the intercepts of the circle are:
- \( x \)-intercepts: None
- \( y \)-intercepts: \( \left(0, -7 + \sqrt{5}\right), \left(0, -7 - \sqrt{5}\right) \)
So, the final answer for the \( x \)-intercepts is:
**A. The \( x \)-intercept(s) is/are: None**.
Quick Answer
The \( x \)-intercepts are none.
Answered by UpStudy AI and reviewed by a Professional Tutor
UpStudy ThothAI
Self-Developed and Ever-Improving
Thoth AI product is constantly being upgraded and optimized.
Covers All Major Subjects
Capable of handling homework in math, chemistry, biology, physics, and more.
Instant and Accurate
Provides immediate and precise solutions and guidance.
Try Now
Ask Tutors
Ask AI
10x
Fastest way to Get Answers & Solutions
By text
Enter your question here…
By image
Re-Upload
Submit