Answer:
(-21,-19)

Standard form
Step-by-step explanation:
We are given the equation of circle

General equation of circle:

Centre: (-g,-f)
Radius: 
Compare the equation to find f, g and c from the equation



Centre: (-21,-19)
Radius (r) 
Standard form of circle:

The centre of circle at the point (-21,-19) and its radius is
.
The general form of the equation of a circle that has the same radius as the above circle is standard form.
Okay, when rounding, always look at the number one place to the right, if it is five or above, round up, if it is below five, round down. 34.28 rounds to 34.3 in this case.
Answer:
-9
Step-by-step explanation:
negative divided by positive = negative.
Divide both sides by -2, giving you y= -1+1/5x. The slope would be 1/5