![CPM Homework Banner](/dist/7d633b3a30200de4995665c02bdda1b8.png)
Home > APCALC > Chapter 4 > Lesson 4.4.2 > Problem 4-150
4-150.
Write the equation of the line that is:
Tangent to the function
at . Write the equation of the tangent line in point-slope form.
We know that the point of tangency happens at
. Evaluate the function, , to find the point.
Evaluate the derivative,, to find the slope. Perpendicular to the tangent line in part (a) at
. Definition: A 'normal line' is perpendicular to a tangent line at the point of tangency.