Answer:
140
Step-by-step explanation:
<u>Answer-</u>
The equations of the locus of a point that moves so that its distance from the line 12x-5y-1=0 is always 1 unit are

<u>Solution-</u>
Let a point which is 1 unit away from the line 12x-5y-1=0 is (h, k)
The applying the distance formula,








Two equations are formed because one will be upper from the the given line and other will be below it.
Answer:
AB = 32
Step-by-step explanation:
Since line l bisects AB at point M, we have AM = MB.



AM = 4(4) = 16, MB = 5(4) - 4 = 16.
So AB = AM + MB = 16 + 16 = 32.
6 x 60 x 5 would be the equation and all of that put together would be 1,800 vehicles would pass by in an hour.