Question

Write the standard equation of the circle with center (-3, 5) and a diameter of 10.
A. (x + 3)2 + (y – 5)2 = 25
B. (x + 3)2 + (y – 5)2 = 100
C. (x – 5)2+ (y + 3)2 = 5
D. (x – 3)2 + (y + 5)2 = 85

Answer 1

can you find the radius using diameter ?

Answer 2

hint :
radius = diameter/2

Answer 3

and then you could directly use
\(\Large (x-h)^2+(y-k)^2 =r^2\)

where h,k = centre = -3,5
and r= radius

Answer 4

so would the answer be A

Answer 5

yes! good :)

Answer 6

thank you

Answer 7

welcome ^_^