is this right?
An airplane ascends at the rate of 40 feet per minute. The function below shows the height of the airplane from the ground f(t) after t minutes.

f(t) = 40t + 520

Which statement best describes the y intercept of the graph of the function?

It is equal to 520 and represents the height of the airplane above the ground, in feet, after 1 minute.

It is equal to 560 and represents the height of the airplane above the ground, in feet, after 1 minute.

It is equal to 40 and represents the height of the airplane above the ground, in feet, before it starts ascending.

Question

is this right?
An airplane ascends at the rate of 40 feet per minute. The function below shows the height of the airplane from the ground f(t) after t minutes.

f(t) = 40t + 520

Which statement best describes the y intercept of the graph of the function?

 It is equal to 520 and represents the height of the airplane above the ground, in feet, after 1 minute.

 It is equal to 560 and represents the height of the airplane above the ground, in feet, after 1 minute.

 It is equal to 40 and represents the height of the airplane above the ground, in feet, before it starts ascending.

undeadknight26 · Answer

It is equal to 520 and represents the height of the airplane above the ground, in feet, before it starts ascending.

anonymous · Answer

x=time (t)
y=height f(x)

undeadknight26 · Answer

so 520 reps height then right?

undeadknight26 · Answer

SO it would be d?
It is equal to 520 and represents the height of the airplane above the ground, in feet, before it starts ascending.

anonymous · Answer

yes that is the "y intercept" if you will of y=mx+b

undeadknight26 · Answer

so then it would be D right?

undeadknight26 · Answer

Since ti says that is the height before take off?

anonymous · Answer

It is equal to 520 and represents the height of the airplane above the ground, in feet, after 1 minute.

undeadknight26 · Answer

So the first one?

undeadknight26 · Answer

Did you know the answer to the other one i posted?

anonymous · Answer

mx+b
m = slope, b = y intercept
40t + 520
40 = slope, 520 = y intercept

undeadknight26 · Answer

doesnt y = b also?

anonymous · Answer

link to it please?

undeadknight26 · Answer

The table below represents the distance a person runs as a function of time.


Time
(second) 
x
Distance
(meters) 
f (x)
10,60
13,78
16,96
19,114


The average rate of change of the function between x = 10 to x = 16 is __________ m/s and represents the person's speed.

undeadknight26 · Answer

I think it is -36

undeadknight26 · Answer

@ehuman

undeadknight26 · Answer

@HaleyT @ash2326 @helppls123 @phi @Preetha please help me...

undeadknight26 · Answer

Thanks for coming do you think this is the right answer?

undeadknight26 · Answer

@ehuman come back please!!!

undeadknight26 · Answer

@soulflower @austinL @amistre64 @Skyz @bloopman please help...

undeadknight26 · Answer

@hartnn

anonymous · Answer

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