Question

How do you graph `y = -3^-x` using a table of values?

Answer 1

You would set up a table of any values of x and plug them into the equation. Once you plug in an x value you solve to find the corresponding y value.

Explanation:

For example.
A table of values from 1 to 10
graph{-3^-x [-10, 10, -5, 5]}

plug in 1 and you get -3^-1x = -.33
this -.33 is your y value so you graph it as (1,-.33)
then continue this until you start to develop a line or curve on the graph.
(2,-.11)
...
...
...
(10,-.004)
In this case as you can see on the graph the horizontal asymptote is 0 and the curve will approach 0, but will never actually touch 0.
So just make up a table of x values and then calculate the corresponding y values for this table as i have shown above.