Question

Scientists are studying the temperature on a distant planet. They find that the surface temperature at one location is 50° Celsius. They also find that the temperature decreases by 7° Celsius for each kilometer you go up from the surface. Let T represent the temperature (in Celsius), and let H be the height above the surface (in kilometers). Write an equation relating T to H, and then graph your equation using the axes below.

Answer 1

I really just need help writing the equation

Answer 2

`They find that the surface temperature at one location is 50° Celsius`
they are at the surface, ie they are on the ground

so when H = 0, T = 50

think of H as x, T as y

(H,T) = (x,y) = (0,50)

hopefully you can see this is the y intercept

Answer 3

Right

Answer 4

`They also find that the temperature decreases by 7° Celsius for each kilometer you go up from the surface`

as H increases by 1 (km), the temp goes down by 7 (degrees C)

so the slope is rise/run = -7/1 = -7

m = -7

Answer 5

m = -7 is your slope
b = 50 is the y intercept

Answer 6

I got it, thank you.

Answer 7

np