Amir drove from Jerusalem to the lowest place on Earth, the Dead Sea. His altitude relative to sea level (in meters) as a function of time (in minutes) is graphed.
Altitude (meters)
440-
400+
360-
320
280-
240-
200+
160
120-
80-
40
0
40-
-801
-120+
-160-
-2007
-240
-280
43203
4
8 12 16 20 24 28 32 36 40 44 48 52 56 60 64 68 72
how fast did amir descend

you never say the total so we cant find the percentage used for petrol

step-by-step explanation:

b

step-by-step explanation:

the equation of a line in point- slope form is

y - b = m(x - a)

where m is the slope and (a, b) a point on the line

calculate m using the slope formula

m = (y₂ - y₁ ) / (x₂ - x₁ )

with (x₁, y₁ ) = (0, 4) and (x₂, y₂ ) = (3, - 5) ← 2 points on the line

m = = = - 3

with m = - 3 and (a, b) = (3, - 5), then

y - (- 5) = - 3(x - 3), that is

y + 5 = - 3(x - 3) → b