Answer: D) y + 9 = -4(x -4)
Step-by-step explanation:
The point-slope formula says that y - b = m( x - a) Where b is the y coordinate of a point, m is the slope and a is the x coordinate of the same point. Given the point (4,-9) the x coordinate is 4 and the y coordinate is -9.
y - (-9) = -4(x - 4) Reduce it.
y + 9 = -4(x -4)
Step-by-step explanation:
The diameter of the circle can be found by using the distance formula with the two points given...
d^2=(4--10)^2+(6--2)^2
d^2=14^2+8^2
d^2=260
d=√260
d=2√65
Since the radius is just half of the diameter, r= √65
The center of the circle will just be the midpoint (the average of the coordinates of the two endpoints) of the two points given so:
c=(-10+4)/2, (-2+6)/2
c=(-3,2)
The standard form of the circle is:
(x-h)^2+(y-k)^2=r^2, where (h,k) is the center of the circle so we can say:
(x+3)^2+(y-2)^2=65
Answer:
Its A, 8
Step-by-step explanation:
Answer:
4. m_LON + m_MON = m_LON; m_JKL + m_IKH = m_HKJ
Step-by-step explanation:
Both interior angles of each add up to m_LON:m_HKJ
To prove this we show the interior angles add + sign to each prove LON angle, and : colon separates from the proof of m_JKL+m_IKH= m_HKJ.
