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snow_lady [41]
3 years ago
11

Write the points (-3,5) and (1,1) in slope-intercept form

Mathematics
1 answer:
Jobisdone [24]3 years ago
3 0
Y=mx+b
m=slope
b=yint

find slope
slope between (x1,y1) and (x2,y2) is (y1-y2)/(x1-x2)

given
(-3,5) and (1,1)
slope=(5-1)/(-3-1)=4/-4=-1

y=-1x+b
find b
when x=1, then y=1
1=-1(1)+b
1=-1+b
add 1
2=b


y=-x+2
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so, I guess, we have to add his distance to the kite to her distance to the kite to get the distance between her and him.

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as the other extreme alternative, he could be on the same line to the kite as Anna. and then we would have to subtract his distance from her distance.

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there is the direct line of sight as the base line or Hypotenuse (c).

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there is the line representing the height of the kite above ground as the other side. we let this start at the height of the eyes of the watching person.

and we assume that both persons are of the same height (so the height of the kite relative to their eyes is the same for both).

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the side a of Anna's triangle is

a = 20m

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we know the angle between a and b is 90 degrees.

therefore the angle between b and c = 180-90-44 = 46 degrees.

now we use the law of sines :

a/sin(bc) = b/sin(ac) = c/sin(ab)

we know sin(ab) = sin(90) = 1

20/sin(46) = b/sin(44)

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