Let’s find the slope of this equation
Slope formula:
(y2-y1/x2-x1)
Plug things in
(-3000-0/20-0)
(-3000/20)
Condense the fraction
Slope = -150 or lowering 150 feet per minute.
Let’s get point slope form, add in some points.
Point slope form:
y - y1 = -150(x - x1)
Plug things in
y - (-3000) = -150(x - 20)
y + 3000 = -150x + 3000
Subtract 3009
y = -150x
Plug in -36000 for y
(-36000) = -150x
Divide by -150
x = 240
You are correct, it took 240 minutes.
