probably choice D is the most trust worthy but if im right please tell me
Parallel means the same slope, -1 here.
y - 4 = (-1) (x - (-1))
which we'll simplify but still keep in point slope form as
Answer: y - 4 = -(x + 1)
Use substitution
x + x + 4 = 2
2x = -2, x = -1
Y = -1 + 4, y = 3
Solution: (-1, 3)
Given:
The equation of a circle is:
To find:
The center and radius of the circle.
Solution:
We have,
To make complete square add square of half of x and square of half of y on both sides.
...(i)
The standard form of a circle is:
...(ii)
On comparing both sides, we get
Therefore, the center of the circle is (-2,3) and the radius is 3 units.