Question

How do I solve `f(x)=(x+2)/(x^2+1)` on a TI-84?

Answer 1

`x`- intercept: `-2`

Explanation:

You are setting the equation to make it equal to `0` and solving for where `x=0`. Basically, you are finding the interception point of `f(x)` and the `x`-axis.

Graph `f(x)` on the TI-84, then plot the `y=0` line.
How to plot a function using the TI-84

Then, find the intersection point.
Finding the intersection point on the TI-84