hi please check my answer (1/5)

The graph of f(x) = (0.5)^x is replaced by the graph of g(x) = (0.5)^x − k. If g(x) is obtained by shifting f(x) down by 2 units, the value of k is ________.

k = 7

Question

hi please check my answer (1/5) 

The graph of f(x) = (0.5)^x is replaced by the graph of g(x) = (0.5)^x − k. If g(x) is obtained by shifting f(x) down by 2 units, the value of k is ________.

k = 7

trojanpoem · Answer

Why 7 ?

trojanpoem · Answer

let f(x) be a function

to shift it up "a" units

f(x) = f(x) + a

to shift it down "a" units:

f(x) = f(x) - a

celinegirl · Answer

bc a friend helped me get the answer i just don't know if its 100% correct.. it could be -7

trojanpoem · Answer

k = 2

celinegirl · Answer

hm idk

trojanpoem · Answer

https://www.desmos.com/calculator f\left(x\right)\ =\ \left(0.5\right)^x g\left(x\right)\ =\ \left(0.5\right)^x-2

trojanpoem · Answer

Shift it down means, subtracting from the y

trojanpoem · Answer

say you have

y = x|dw:1452188133237:dw|

celinegirl · Answer

idk i still think its 7 sorry