Derivative at a Point Using Difference Quotient

Learn how to use the difference quotient to find the instantaneous rate of change (slope of the tangent line) at a specific point on a graph! Mario's Math Tutoring breaks down the formula: lim (h→0) [f(a+h) - f(a)] / h, explaining each component. We'll walk through a detailed example involving a square root function, demonstrating how to simplify the expression using rationalization and evaluate the limit. This video is crucial for calculus students or anyone preparing for higher-level math! #DifferenceQuotient #Calculus #InstantaneousRateOfChange #SlopeOfTangentLine #Limits #Rationalization #MathTutorial #PreCalculus #MathHelp #mariosmathtutoring Timestamps: 00:00 Intro 0:36 Formula for Finding the Difference Quotient at a Point 1:36 Example 1 Finding the Slope at (1,2) on f(x)=sq. rt.(x + 3) 3:06 Rationalizing by Multiplying by the Conjugate 4:40 Interpreting the Result Related Videos: More Difference Quotient Examples    • More Difference Quotient Examples   Tangent Line Using Difference Quotient    • Tangent Line Using Difference Quotient   Finding Turning Points Using Difference Quotient    • Finding Relative Maximums and Minimums Usi...   Organized List of My Video Lessons to Help You Raise Your Scores & Pass Your Class. Videos Arranged by Math Subject as well as by Chapter/Topic. (Bookmark the Link Below) http://www.mariosmathtutoring.com/fre... ➡️JOIN the channel as a CHANNEL MEMBER at the "ADDITIONAL VIDEOS" level to get access to my math video courses(Algebra 1, Algebra 2/College Algebra, Geometry, and PreCalculus), midterm & final exam reviews, ACT and SAT prep videos and more! (Over 390+ videos)    / @mariosmathtutoring