The answer is C for that question
The formula for circumference of a circle
=
2
π
r
The radius
=
3
c
m
(assuming units to be in cm)
2
π
r
=
2
×
22
7
×
3
=
132
7
=
18.86
c
m
Each just has different amounts of 0s
slope is -1

we have a point as (-4,3)
we can use slope intercept form of line

we can plug m=-1

now, we can plug point (-4,3)
x=-4 and y=3 and then we can find b


now, we can plug back
and we get
............Answer