SOLUTION: Find the coordinates of the point that lies three fourths of the way from (10, -8) to (6, 0) a) (8, -4) b) (9, -2) c) (7, -2) d) (9, -6)

Algebra ->  Length-and-distance -> SOLUTION: Find the coordinates of the point that lies three fourths of the way from (10, -8) to (6, 0) a) (8, -4) b) (9, -2) c) (7, -2) d) (9, -6)      Log On


   



Question 598640: Find the coordinates of the point that lies three fourths of the way from
(10, -8) to (6, 0)
a) (8, -4) b) (9, -2) c) (7, -2) d) (9, -6)

Found 2 solutions by stanbon, math-vortex:
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Find the coordinates of the point that lies three fourths of the way from
(10, -8) to (6, 0)
a) (8, -4) b) (9, -2) c) (7, -2) d) (9, -6)
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Let (x,y) be that point:
x = 10 + (3/4)(6-10) = 10 + (3/4)(-4) = 10-3 = 7
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y = -8 + (3/4)(0-(-8)) = -8 + (3/4)(8) = -8+6 = -2
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Ans: (7.-2)
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Cheers,
Stan H.
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Answer by math-vortex(648) About Me  (Show Source):
You can put this solution on YOUR website!
Hi, there--
.
One way to solve this problem is to find the midpoint between (10,-8) and (6,0). Then find the midpoint between THAT point and (6,0). [one-half plus one-half of one-half is 1/2 + 1/4 = 3/4.]
.
[I] Find midpoint from(10,-8) to(6,0) by using the Midpoint Formula.
.
x%5Bm%5D=%28x%5B1%5D%2Bx%5B2%5D%29%2F2
x%5Bm%5D=%2810%2B6%29%2F2=16%2F2=8
.
y%5Bm%5D=%28y%5B1%5D%2By%5B2%5D%29%2F2
y%5Bm%5D=%28-8%2B0%29%2F2=-8%2F2=-4
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The midpoint from (10,-8) to (6,0) is (8,-4).
.
[II] Find the midpoint from (8,-4) to (6,0).
.
x%5Bm%5D=%28x%5B1%5D%2Bx%5B2%5D%29%2F2
x%5Bm%5D=%288%2B6%29%2F2=14%2F2=7
.
y%5Bm%5D=%28y%5B1%5D%2By%5B2%5D%29%2F2
y%5Bm%5D=%28-4%2B0%29%2F2=-4%2F2=-2
.
The midpoint midway from (8,-4) to (6,0) to (7,-2).
.
The answer is C.
.
Best!
Ms.Figgy
math.in.the.vortex@gmail.com