This is the video about how to find the equation of a tangent line. As you may recall, a line which is tangent to a curve at a point a, must have the same slope as the curve. Therefore, the slope of the tangent is m = lim f(a + h)  f(a) h>0 h Since the slope equation of the tangent line is exactly the same as the derivative definition, an easier way to find the tangent line is to differentiate using the rules on the function f. For example, Find the slope of a line tangent to the function f(x) = x2 + 1. f '(x) = 2x The slope of the tangent line for all points on the graph is 2x. To find the slope and equation of a line tangent to a certain point, you must: First find the slope of the function by differentiation. Find the equation of the tangent line for the function f(x) = x2 + 1 at point (3,10). Find the slope of the function by differentiation f '(x) = 2x
 Hot
 Latest

How To: Calculate Faster Than a Calculator

How To: Find the Percent Given Two Numbers

How To: Find a number given Its percent

How To: Do long division without a calculator

Use the quadratic equation: finding the mirror point

How To: Remember "greater than" & "less than" symbols

How To: Use ">" (greater than) and "<" (less than) symbols

How To: Calculate the area of a parallelogram

How To: Calculate the height and volume of a pyramid

How To: Find the Height of a Trapezoid.

How To: Find measure of an exterior angle of a regular polygon

How To: Solve problems involving functions in algebra

How To: Solve direct proportions

How To: Find the area of a parallelogram using geometry

How To: Calculate percent composition for chemistry

How To: Divide small numbers by big numbers

How To: Learn Calculus in 20 minutes

How To: Convert fractions to percents in two steps

How To: Find the area of a circle when you know the diameter

How To: Calculate math without a calculator

How To: Calculate Faster Than a Calculator

How To: Find the Percent Given Two Numbers

How To: Find a number given Its percent

How To: Do long division without a calculator

Use the quadratic equation: finding the mirror point

How To: Remember "greater than" & "less than" symbols

How To: Use ">" (greater than) and "<" (less than) symbols

How To: Calculate the area of a parallelogram

How To: Calculate the height and volume of a pyramid

How To: Find the Height of a Trapezoid.

How To: Find measure of an exterior angle of a regular polygon

How To: Solve problems involving functions in algebra

How To: Solve direct proportions

How To: Find the area of a parallelogram using geometry

How To: Calculate percent composition for chemistry

How To: Divide small numbers by big numbers

How To: Learn Calculus in 20 minutes

How To: Convert fractions to percents in two steps

How To: Find the area of a circle when you know the diameter

How To: Calculate math without a calculator
Be the First to Comment
Share Your Thoughts