A plane is on its approach to land on the runway. The jet’s height above the ground is given in feet as a function of the time in seconds. The following table tracks the plane as it lands: t (in seconds) h (in feet) 0 4000 5 3500 10 3000 15 2500 20 2000 25 1500 The equation for this linear function is h = negative 100 t + 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.

b. 1.25 hr

step-by-step explanation:

if you have a constant speed of 60 mph, then you have a ratio between 60 mi. to 1 hr. dividing both sides by 60 we get the ratio

1 mi. to

then mult. both sides by 75 we get the ratio

75 mi. to

simplifying we get

75 mi. to

or 1.25 hr.

5+2x=a

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the height of the surface increases from the center out to the sides of the road.

step-by-step explanation:

as we move out we move away from the x-axis.

and as mentioned in the problem statement that height of a road increases when we move away from the center x.

hence proved that 3rd option

the height of the surface increases from the center out to the sides of the road.

is the correct option.