Question

How do you graph `f(x)=(1/7)^x`?

Answer 1

This exponentially decaying function passes through the points:
`(-2, 49)`, `(-1, 7)`, `(0, 1)`, `(1, 1/7)`, `(2, 1/49)`

As `x->oo` `f(x)->0_+` very fast

As `x->-oo` `f(x)->oo` very fast

graph{(1/7)^x [-10, 10, -5, 5]}