2. A skydiver jumps from a plane from an altitude of 6000 ft. An observer on the ground measures the skydiver’s altitude at time t = 0 to be 4500 ft. The linear graph shows the skydiver’s altitude at various times during her descent.

Question

2.	A skydiver jumps from a plane from an altitude of 6000 ft. An observer on the ground measures the skydiver’s altitude at time t = 0 to be 4500 ft. The linear graph shows the skydiver’s altitude at various times during her descent.

twizttiez · Answer

(a)	Identify the y-intercept. How does the y-intercept relate to the skydiver’s position relative to the ground? Explain.
(b)	Determine the slope of the line. According to the slope, is the skydiver ascending or descending, and what is the rate of ascent or descent? Explain.
(c)	Identify the x-intercept. What does the x-intercept mean in this context? Explain

twizttiez · Answer

|dw:1422565379775:dw|

twizttiez · Answer

@Squirrels

campbell_st · Answer

the y - intercept is where the line cuts the y- axis... or vertical axis. this is her height when the observer first sees her

pick 2 points on the line and find the slope

say (0, 4500) and (1, 3000)

slope = change in altitude/change in time 
         = (3000 - 45000)/(1 - 0)

the x intercept is where the line cuts the x-axis.. horizontal axis

it shows the time it took the skydiver to travel from 4500 feet to the ground. 

Hope it helps

squirrels · Answer

^ looks like he's got. thanks @campbell_st

twizttiez · Answer

Ok but like how do i determine the slope and identify the y-intercept?

campbell_st · Answer

ok... look at the graph... where on the y axis or vertical axis does the line start..?

twizttiez · Answer

(3,0)

twizttiez · Answer

Is that my intercept?

twizttiez · Answer

Or wait it's a falling line so it'd be (04500)

campbell_st · Answer

no, look at the graph |dw:1422566092717:dw|