Question

Having trouble finding so section to this graphed function.

Answer 1

\[\large f(x)=4^x-18\]

Answer 2

I have been able to find all the details for this graph besides the following:

Increasing in interval form.

f(x) < 0
f(x) > 0

and the horizontal asymptote

Any help on finding any of these would be a great help and medal thanks.

Answer 3

the horizontal asymptote is x-axis. I think so...

Answer 4

and f(x) > 0

Answer 5

how is that written.

Answer 6

Would investigating its logarithm help??

ln [f(x)] = x ln [4] - ln [18]

Straight line on ln [f(x0] vs x graph. slope ln [4] etc.