The standard equation of a circle is
,
where (a, b) is the center of the circle, and r is the radius.
So, if we write
in the above form, the center and the radius will be obvious to us.
Note that
is very close to
except for the 1.
Similarly, we notice that
is like
, without the 16.
So,
.
Answer:
Answer:
The first one ( x and y are switched)
Step-by-step explanation:
it should be (1/2, -1/2)
when graphing you must go across and then up or down.
He went right which meant a positive x
then he went down which meant a negative y
Hello,
I would love to answer but there is no screenshot to see!