# Question #ca7f8

##### 2 Answers

So you don't know the derivative of

(I assume the function is

Let's write the definition:

You know

So, by Leibniz

So the equation of the tangent line is

Which means

graph{1/2xln(x^2) [-10, 10, -5, 5]}

graph{y=x+1 [-10, 10, -5, 5]}

For

to find the slope of the tangent line at

Usually, I like to use the fact that

To find

So,

And at the point of interest:

I assume you can find the equation of the line through

**Additional Comments**

We could have used