Answer:
(x-1)^2+(y+19/8)^2=2665/64
Step-by-step explanation:
The general equation of a circle is
(x - h)^2 + (y - k)^2 = r^2
Substituting the values of the 3 given points:
(-5 - h)^2 + (0 - k)^2 = r^2
(0 - h)^2 + (4 - k)^2 = r^2
(2 - h)^2 + (4 -k)^2 = r^2
Subtracting the second equation from the first:
(-5-h)^2 - h^2 + k^2 - (4 - k)^2 = 0
25 + 10h + h^2 - h^2 + k^2 - 16 + 8k - k^2 = 0
10h + 8k = -9 ------------ (A).
Subtract the third equation for the second:
h^2 - (2 - h)^2 + 0 = 0
h^2 - 4 + 4h - h^2 = 0
4h = 4
h = 1.
Substituting for h in equation A:
10 + 8k = -9
8k = -19
k = -19/8
So r^2 = (-5-1)^2 + (0 + 19/8)^2 =
36 + 361/ 64
= 2665/64
Answer:
C. y axis
Step-by-step explanation:
y axis is the answer
Answer:
Step-by-step explanation:
Part D
Do part d first. That gives you a big hint.
The height of a is 2 units. The height of d = 6 units. Therefore the heights are related as h_b / h_a = 3/1
Now go back and do A
Part A
Call the coordinates of B = (x,y)
Call the coordinates of A = (x',y')
So it looks like you are going from A to B
x = 3x'
y = 3y'
Part B
You are going in the opposite direction. You are going from B to A
x' = x/3
y' = y/3
Part C
The scale factor to go from B to A is 1/3
The scale factor to go from A to B is 3
Answer:
The equation, when graphed together with the line y=-3x +6, which will form a system of equations with no solution is y=-3(x +6), meaning the second option on the picture.
Step-by-step explanation:
hope this helps!
