### Home > APCALC > Chapter 5 > Lesson 5.3.3 > Problem5-134

5-134.

Write the equation of the line tangent to the graph of $y = \operatorname{sec}(x)$ at $x = 2$. Include a sketch of the graph near $x = 2$ and the tangent line, clearly labeled.

Use point-slope form of a line.

The original equation gives you the point of tangency. The derivative gives you the slope.