Ask your own question, for FREE!
Mathematics 42 Online
OpenStudy (anonymous):

(x-2)^2 + (y-2)^2=4 is a circle. Write the formula for the upper half of the circle. i.e. y=f(x) and what is the domain

OpenStudy (anonymous):

Foil everything out

OpenStudy (anonymous):

x^2-4x+4+y^2-4y-4=4

OpenStudy (anonymous):

x^2-4x+y^2-4y=4

OpenStudy (anonymous):

Solve for y y=sqrt(4-(x-2)^2)+2 You get a plus/minus in the square root but you want the top half so make it positive.

OpenStudy (anonymous):

The the domain is where 4-(x-2)^2>=0 4>=(x-2)^2 +/-2>=x-2 x>=2+/-2 2>=x>=0

OpenStudy (anonymous):

hm i always thought the domain was a coordinate

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Latest Questions
NaiNoah: should it hurt when i move/flex my thigh?
38 minutes ago 9 Replies 3 Medals
Gucchi: english help.
16 hours ago 8 Replies 1 Medal
Gucchi: .. english help
18 hours ago 5 Replies 1 Medal
Gucchi: english help
18 hours ago 10 Replies 2 Medals
Gucchi: english HELP
19 hours ago 10 Replies 2 Medals
Gucchi: ````````````` english help
19 hours ago 7 Replies 1 Medal
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!