Question

How do you graph `y =2^x`?

Answer 1

This is an exponential function, and so, non-negative, x-axis y = 0 is the asymptote. The curve gets closer to x-axis on the left and rises without limit, on the right. Cuts y-axis at (0, 1).

Explanation:

`y>0`.
As `xto-oo, yto0, slowly`.
As `xto+oo, ytooo`, rapidly.