Question

can you check my answer i think it is (4, -6)
. The circle described by the equation (x 2)2 + (y + 5)2 = 16 is translated 4 units to the left and 1 unit up. At what point is the center of the image circle located?
(Points : 5)
(-4, 6)

(4, -6)

(-2, -4)

(6, -6)

Answer 1

if you can help

jim_thompson5910
i would rather you than any one :) your so awesome :)

Answer 2

The equation is (x - 2)^2 + (y + 5)^2 = 16 right?

Answer 3

yes

Answer 4

the center of (x - 2)^2 + (y + 5)^2 = 16 is ???

Answer 5

i got (4, -6)

Answer 6

for my answer

Answer 7

don't jump to the answer yet

Answer 8

the center of (x - 2)^2 + (y + 5)^2 = 16 is ???

Answer 9

midpoint is (2, -5) right?

Answer 10

the center of (x - 2)^2 + (y + 5)^2 = 16 is (2,-5) correct

Answer 11

To translate it 4 units to the left, is subtracting 4 from the x co-ordinate.

Answer 12

right

Answer 13

now move this 4 units to the left to go from (2,-5) to (-2, -5)

Then move this 1 unit up to go from (-2, -5) ---> (-2, -4)

Answer 14

so the new center is (-2, -4)

Answer 15

oh okay I see now :) That's the equation of the circle, and the midpoint is (2, -5). To translate it 4 units to the left, is subtracting 4 from the x co-ordinate. So, the answer should be (-2, -5

Answer 16

i mean 4
lol i put 5

Answer 17

yeah (-2, -4)

Answer 18

okay this nect one i think that it is 6.28 cm I have my work all done and everything

Answer 19

ircle A has a radius of 6 cm, and arcs RC, CS, and SM are congruent. To the nearest hundredth, what is the best approximation of the length of arc RC?

(Points : 5)
12 cm

6.28 cm

3.14 cm

1.57 cm

Answer 20

arcs RC, CS and SM are congruent, so because they form a straight angle, they must add to 180

RC + CS + SM = 180

RC + RC + RC = 180 ...they're all the same, so why not just call all 3 RC (we want to solve for this anyway)

3RC = 180

RC = 180/3

RC = 60

so arc RC is 60 degrees

Answer 21

s = (angle/360)*2*pi*r

s = (60/360)*2*pi*6

s = (60/360)*2*3.14*6

s = ???

Answer 22

6.28? your work looks like mine :)

Answer 23

that's awesome, glad it does

Answer 24

and yes, 6.28 is the answer

Answer 25

okay one last question are u up to it ?

Answer 26

sure

Answer 27

Which is the graph of the circle with equation (x + 1)2 + (y 2)2 = 9?

Answer 28

(x + 1)^2 + (y - 2)^2 = 9

center = ???

radius = ???

Answer 29

thats ware im confused

Answer 30

(x + 1)^2 + (y - 2)^2 = 9 has a center of (-1, 2) and a radius of 3

Answer 31

since it's in the form (x-h)^2+(y-k)^2=r^2 where

h = -1
k = 2
r = 3

Answer 32

oh okay i see

Answer 33

that should help you pinpoint the correct graph

Answer 34

so opt d

Answer 35

well A and C are no-shows...so idk what they are

Answer 36

it's NOT D since the center of D is (1, -2) when it should be (-1, 2)

Answer 37

c is the first one a is the second one

Answer 38

okay so then the answer must be c correct i mean thats the only one that seems to make sence

Answer 39

yeah it's C

Answer 40

awesome thank you so so much

Answer 41

omg I got a 100 and some answers you did not even help with i answered on my own! :P thank you so so so much your a life saver :)

Answer 42

you're welcome

Answer 43

went from supper to a hard candy, i didn't know i could be so many food items

Answer 44

but glad to be of help

Answer 45

LOL :p