creepycrepes
30.09.2020 •
Mathematics
The number f of miles a helicopter is from its destination x minutes after takeoff is given by f (x)=40-2x. The number f of miles a commercial jet is from its destination x minutes after takeoff is shown in the graph below.
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Ответ:
The total distance and time taken for each flight are illustrations of intercepts.
The helicopter traveled 40 miles in 20 minutesThe commercial jet traveled 500 miles in 100 minutesWe have:
minutes
miles
Helicopter
Set f(x) to 0, to calculate the x-intercept
Collect like terms
Divide by 2
Set x to 0, to calculate the y intercept
This means that, the helicopter traveled 40 miles in 20 minutes
Commercial Jet
From the graph, the intercepts are:
--- the x-intercept
--- the y-intercept
This means that, the commercial jet traveled 500 miles in 100 minutes
Read more about intercepts at:
link
Ответ:
Step-by-step explanation:
Function 'f' represents the number of miles (y-values) covered by the helicopter in 'x' (x-values) minutes.
f(x) = 40 - 2x
For x = 0,
f(x) = 40 miles
For f(x) = 0,
0 = 40 - 2x
x = 20 minutes
This shows that helicopter traveled 40 miles in 20 minutes.
Similarly, given graph shows distance covered by the jet on y-axis and duration of flight on x-axis.
For x = 0,
f(x) = 500 miles
For f(x) = 0,
x = 100 minutes
Commercial jet traveled 500 miles in 100 minutes.
Ответ:
Not valid
Step-by-step explanation:
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