### Home > APCALC > Chapter 11 > Lesson 11.3.1 > Problem 11-80

11-80.

Write the equation of the line tangent to the polar curve

To write the equation of the line, the slope, or *dy*/*dx* is needed.

For the given value of *θ*, where is the point on the curve?

What are the coordinates of this point in rectangular form?

Write an equation for:

Evaluate your slope equation from Step 3 using the (rectangular) point