can anyone answer this question....class = 10th.... subject = math....please also tell me.... which part are you doing... A & B
Answers
Answer:
Step-by-step explanation:
A. For the first question, draw a line with endpoints as A and B (just for your reference)
Take the centre point of the line you made as O
O is the midpoint of AB (Equidistant from both points)
take A as (2, -2) and B as (-4,2)
midpoint OB is (x,y)
Apply the co-ordinate distance formula for midpoint (x = x2 + x1/2, y =y2 + y1/2)
x = -4 + 2/2
= -2/2
x = -1
y = 2 - 2/2
y = 0
therefore,
the point is at (-1,0)
B. For the second question, again draw a line
mark the endpoints as P and Q
select a point closer to P and name it R
now PR = 2QR
they are divided in the ratio of 1:2
m1 = 1, m2 = 2
P (-2,5) and Q (3,2)
lastly, R (x,y)
Now apply the normal coordinate point formula based on the ratio:
[x = (m1x2 + m2x1)/(m1 + m2), y = (m1y2 + m2y1)/(m1 + m2)]
x = (1)(3) + (2)(-2)/3
= 3 - 4/3
x = -1/3
y = (2)(1) + (5)(2)/3
y = 8/3
(I might have gone wrong with the question B, please verify it from your teacher if you get the chance, I haven't done this in a while!)