Calculus Examples

$f (x) = \frac{x + 1}{x - 4}$ , $x = 7$

Step 1

Since $x = 7$ is a vertical line, the slope is undefined.

Undefined

Step 2

Since the slope of the equation $x = 7$ is undefined, there is no tangent line for $f (x) = \frac{x + 1}{x - 4}$ which is parallel to $x = 7$ .

No tangent line can be found