Question

Which is the equation of a circle with center (-2 3) and radius r=5?
(x + 2)² + (y – 3)² = 10
(x + 2)² + (y – 3)² = 25
(x – 2)² + (y + 3)² = 10
(x – 2)² + (y + 3)² = 25

Answer 1

4. Which is the equation of a circle with diameterwith A(5, 4) and B(–1, –4)?
(x – 5)² + (y – 4)² = 10
(x + 5)² + (y + 4)² = 100
(x – 2)² + y² = 25
(x + 2)² + y² = 5

Answer 2

2. A circle with center (–1, 2) passes through point (2, –2). Which is true?

The radius is. sqrt 5
The diameter is 10.
The equation is (x + 1)² + (y – 2)² = 10.
The circumference is 25.

Answer 3

for your 1st question the answer is B

for the 3rd question the answer is the diameter is 10
\[r^2=(x-h)^2+(y-k)^2\rightarrow (2+1)^2+(-2-2)^2\]
which you have \[r^2=3^2+4^2\rightarrow r^2=25\rightarrow r=5\]
diameter is 2*r so \[2(5)=10\]

i'm currently working on the 2nd one

Answer 4

the answer for the 2nd one is B

Answer 5

number 4 was C not B