Sign In
Ask Question
Mathematics
Caroline Brennan
17 February, 06:35
Identify the center and radius of each circle
x^2 + y^2 + 4x + 12 - 8 = 0
+3
Answers (
1
)
Jake Mahoney
17 February, 09:22
0
we have the centre as:
(-2,0)
radius √12=2√3
Explanation:
The standard equation of a circle is
(x-a) 2 + (y-b) 2=r2
where (a, b)
is the centre, and
r is the radius,
we thus have to complete the square on the given equation.
x2+y2+4x-8=0
rearrange slightly
x2+4+y2-8=0 (x2+4+2) + y2-8-22=0 (x+2) 2+y2-12=0 (x+2) 2+y2=12
comparing with
(x-a) 2 + (y-b) 2=r2
we have the centre as:
(-2,0)
radius
√12=2√3
Comment
Complaint
Link
Know the Answer?
Answer
Not Sure About the Answer?
Get an answer to your question ✅
“Identify the center and radius of each circle x^2 + y^2 + 4x + 12 - 8 = 0 ...”
in 📙 Mathematics if there is no answer or all answers are wrong, use a search bar and try to find the answer among similar questions.
Search for Other Answers
You Might be Interested in
What is 3 in 2/5 - 1 in 9/10
Answers (1)
What is an simplified expression for 8a - (-3-5a) - 2a?
Answers (1)
Write the decimal number in words 235.678
Answers (1)
Margie divided 24 by 3
Answers (2)
Solve the equation. Then check your solution. -448 = 64q a. - 512 b. 7 C. - 2 d. - 7 Pleaase answer
Answers (2)
New Questions in Mathematics
The set of all even whole numbers greater than 6 and less than 16 can be written as: set L = {8, 10, 12, 14} set M = {6, 8, 10, 12, 14, 16} set N = {8, 10, 12, 14, 16, 18} set P = {7, 8, 9, 10, 11, 12, 13, 14, 15}
Answers (1)
A vat has a capacity of 642 fl oz. estimate the capacity in cups
Answers (1)
How are the graphs of the function f (x) = square root 16^x and g (x) = 3 square root 64^x related
Answers (1)
A rectangle has side lengths of 10 and 14. A similar rectangle might have side lengths of
Answers (1)
12+4n>44 or 10-12n>-38
Answers (2)
Home
»
Mathematics
» Identify the center and radius of each circle x^2 + y^2 + 4x + 12 - 8 = 0
Sign In
Sign Up
Forgot Password?