Question

What is the range for f(x) = 2^x +1 and g(x)=-2^x+1?

Answer 1

2^{x} + 1 = y

log ( y -1) = x

y - 1 > 0

y > 1 i.e is your range :-D

Answer 2

for both of the functions?

Answer 3

same process for the other function too

Answer 4

oh ok

Answer 5

would it be y<1?

Answer 6

yeah i think so

Answer 7

thanks