Solution :
First Jerome reach 20 floors up from the elevator.
Then, Jerome took the stairwell down 2 floors for a morning meeting.
So, currently he is on 20 - 2 = 18 floor.
Now, it is given that he took the elevator down 8 floors for lunch in the cafeteria.
Current position is 18 - 8 = 10 floor.
Finally, he walk 4 floors upstairs for after noon meeting.
Final position is 10 + 4 = 14 floor.
Therefore, in the end he is in 14 floor for the afternoon meeting.
Answer:
toney dead his mom and dad adopted him and he die
Point point form for the line through (a,b) and (c,d) is
(c-a)(y-b) = (d-b)(x-a)
We don't care about the constant part, this is
(b-d)x + (c-a)y = some constant
(a,b)=(5,-1) and (c,d)=(2,-5)
(-1 - -5) x + (2 - 5)y = some constant
4x - 3y = some constant
We didn't bother to calculate to constant because the parallel through (-1,8) means we get a different constant, obviously
4x - 3y = 4(-1) - 3(8)
4x - 3y = -28
(ab-3a+1) -(3ab-4)
ab-3a+1 -3ab +4
-2ab-3a+5