I hope the solution in pic helps you
Answer:
B
Step-by-step explanation:
The equation of a circle in standard form is
(x - h)² + (y - k)² = r²
where (h, k) are the coordinates of the centre and r is the radius
To obtain this form use the method of completing the square
Given
x² - 8x + y² - 2y - 8 = 0 ( add 8 to both sides )
x² - 8x + y² - 2y = 8
add ( half the coefficient of the x/y terms )² to both sides
x² + 2(- 4)x + 16 + y² + 2(- 1)y + 1 = 8 + 16 + 1
(x - 4)² + (y - 1)² = 25 → B
Answer:
5x3 + 3x2
Step-by-step explanation:
Answer:
The distance between the two points is 7 units
Step-by-step explanation:
we know that
the formula to calculate the distance between two points is equal to
we have
(2, -3) and (2,4)
substitute the values in the formula