Question

Someone help? Please(:

The table below represents the atmospheric temperature at a location as a function of the altitude:

Altitude Temperature
(in thousand feet) (in °C)
x f (x)
15 4
20 -6
25 -16
30 -26

The average rate of change of the function between x = 15 to x = 25 is ___degrees Celsius per thousand feet and represents the rate of change of temperature per thousand feet.

Answer 1

okay this process is easy, do you know what the formula for the rate of change is?

Answer 2

lets say y=f(x)

Answer 3

Ok.

Answer 4

alright what we do is we take x=15 when x=15 what does y=?

Answer 5

4

Answer 6

exactly this is our 1st coordinate

Answer 7

(15,4)

Answer 8

now how about x=20, what does y=?

Answer 9

(20,-16)

Answer 10

good, now do you know what the rate of change formula

Answer 11

if you dont know i can explain it for you

Answer 12

I know it, m = y2-y1/x2-x1

Answer 13

good
so replace those two coordinatinates and find the average rate of change

Answer 14

0.25

Answer 15

Right?

Answer 16

@Muzzack

Answer 17

yes thats correct there is your answer

Answer 18

Thank you.