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An airplane is flying 800 meters in the air. It starts descending at a rate of 30 meters per second. If x represents the total
number of seconds the plane descends, which equation can be used to represent the plane's descent?
Ay= -30x + 800
By=302 – 800
y = -800x + 30
Dy=800x - 30

step-by-step explanation:

given that ab is divided into equal parts as

ac, cd, de, ef, fg, gh, hi, ib.

from this we find that f is the midpoint of ab.

so using mid point formula we find

f = (3,7)

similarly considering fb, we get

h = mid point of fb = ((6,6) and g, mid point of fh is

g = (9/2, 13/2)

i is mid point of hb

so i =(15/2,11/2)