Asked by john
John walks along the edge of the field from point A to point C. If P is
the point on AC when John is nearest to point B, find the length of BP.
the point on AC when John is nearest to point B, find the length of BP.
Answers
Answered by
Damon
I suspect you tried to paste a picture here.
That will not work. I do not see it.
However
you need the line perpendicular to AC through point B
If you have AC in algebra
y = m x + b
then the slope of BP is
m' = -1/m and it goes through B
so find
y = m' x + b' for BP
solve for intersection of BP and AC, that is P
Now you can find |BP| the distance between B and P
sqrt (change in x^2 + change in y^2)
That will not work. I do not see it.
However
you need the line perpendicular to AC through point B
If you have AC in algebra
y = m x + b
then the slope of BP is
m' = -1/m and it goes through B
so find
y = m' x + b' for BP
solve for intersection of BP and AC, that is P
Now you can find |BP| the distance between B and P
sqrt (change in x^2 + change in y^2)
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