Question

The equation for this linear function is h= -100t + 4000. Determine the t-intercept. What is its significance in this situation? a. (0, 20); The jet lands in 20 seconds. b. (25, 0); The jet lands in 25 seconds. c. (40, 0); The jet lands in 40 seconds. d. (0, 40); The jet lands in 40 seconds.

Answer 1

H= -100t + 4000
To find the t-intercept ⇒⇒⇒ ∴ h = 0
-100 t + 4000 = 0
∴ t = 4000/100 = 40

The correct choice is (c)

c. (40, 0); The jet lands in 40 seconds.