Question

the hot air balloon starts descending from an elevation of 2,400 feet. it descends at a constant rate of 400 feet per minute. complete the table to show the balloon’s elevation after it started to descend. time since balloon started to descend (min) elevation (ft) 0 2,400 1 \boxed{} 2 \boxed{} 3 \boxed{} 4 \boxed{}

Explanation:

Step1: Define elevation formula

Let $t$ = time (min), elevation $E(t) = 2400 - 400t$

Step2: Calculate at t=1

$E(1) = 2400 - 400(1) = 2000$

Step3: Calculate at t=2

$E(2) = 2400 - 400(2) = 1600$

Step4: Calculate at t=3

$E(3) = 2400 - 400(3) = 1200$

Step5: Calculate at t=4

$E(4) = 2400 - 400(4) = 800$

Answer:

Time since balloon started to descend (min)	Elevation (ft)
1	2,000
2	1,600
3	1,200
4	800