Question

Hi! Please help with the question below.
Will be fanned don't worry and medals will be given :)
Help with number 19 below

Answer 1

put ur question

Answer 2

Right here being attached

Answer 3

That first piece looks good. :-) Do you know the form of a circle function?

Answer 4

yeah the equation of a circle yeah (x-h)^2 +(y-k)^2=r^2

Answer 5

@JoannaBlackwelder

Answer 6

Great! And the piece that is circular has what center and radius?

Answer 7

r u referring to the firrst pg

Answer 8

Yeah

Answer 9

That is what the question is asking for, right?

Answer 10

well i did all that . i need help with number 19 the last question which is the 3rd pg

Answer 11

Right, but f(x) is referring back to the first page, is it not? Or is there another f(x) given?

Answer 12

no ur right. i think its from the first pg bc then otherwise theres no f(x) only g(x) n etc

Answer 13

Cool. :-)

Answer 14

soo i have one equation
x-5 5<x<6

Answer 15

Right, and can you write the circle equation with the center and radius that we have given in the pic?

Answer 16

(x-h)^2 +(y-k)^2 =r^2
(x-0)^2 + (y-0)^2=r^2

(h,k)=(0,0)
(x,y)= any random point (0,3)

(0-0)^2 +(3-0)^2=r^2
0+9=r^2
9=r^2
radius is 3
equation of this circle is (x-0)^2 +(y-0)^2= 9

Answer 17

but this is a semi circle

Answer 18

Great! Right. To write that in a function form, we will need to simplify and solve for y.

Answer 19

Can you do that step?

Answer 20

uggggg :)

Answer 21

You're doing great! :-)

Answer 22

wait so i have a question

Answer 23

Sure

Answer 24

bc this is a semi circle right, should it be (x-0)^2 +(y-0)^2= 9

Answer 25

We'll get to making it just the semi circle in just a sec, once we have it solved for y. For now, it is the whole circle. Good question. :-)

Answer 26

oh thanks im working on to making it to y=...

Answer 27

ooh i got it.
y=3-x

Answer 28

Close, but not quite. Let me show you.