2007-09-15 04:02:07 · 6 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
The change in x is 7 and in y is 12.
Half of each is 3.5 and 6
so at the midpoint x = -3 + 3.5 = 0.5 = 4 -3.5
and 7 = 7 - 6 = 1 = -5 + 6
(0.5,1) is the midpoint
(The line is 3.5y + 6x = 6.5 or 7y + 12x = 13)
2007-09-15 04:10:22 · answer #1 · answered by Beardo 7 · 0⤊ 0⤋
The easiest way would be to draw a diagram, draw a line, and find the middle of that line.
Algebraically, it's still pretty simple. If we use the laws of vectors, we can see that to get to the second point from the first, we need to go up 7, and across 12. So if we only want to go halfway, we'd only need to go up 3.5 and across 6. If we do that from the first point, we'd end up at (-3+3.5,7-6)=(0.5,1) the midpoint.
2007-09-15 11:13:01 · answer #2 · answered by tgypoi 5 · 0⤊ 0⤋
x=4-3/2=1/2
y=7+5/2=6
the mid point is(1/2, 6)ANS.
2007-09-15 11:07:00 · answer #3 · answered by Anonymous · 0⤊ 1⤋
add -3 to 4 and divide by two and that is x
then add 7 to -5 and that is y
2007-09-15 11:07:22 · answer #4 · answered by S-chan 1 · 0⤊ 0⤋
(-3,7) and (4,-5)
xm=(x1+x2)/2=(-3+4)/2=1/2
ym=(y1+y2)/2=(7+-5)/2=1
midpoint coordinates are 1/2 and 1
2007-09-15 11:24:28 · answer #5 · answered by ptolemy862000 4 · 0⤊ 0⤋
= -5 + 7 , 4 -3
= 2 , 1
i`m not sure it` correct...hahaha
2007-09-15 11:10:21 · answer #6 · answered by Anonymous · 0⤊ 1⤋