### Day 15 - Secant and Tangent Lines - 09.08.14

 Bell RingerNew Chapter = New Table!If you need to take/finish your test, please send me an email when you can take it and I will put it in the test center for you.What is the equation of the line with the following coordinates: (2, 3) and (3, -8)y = -11x + 25y = 11x - 25y = 11x + 25y = -11x - 25none of the aboveWhat is the equation of the line formed by x = 2 and x = 5 on the function f(x) = x2 - 1?y = 7x - 11y = 7x + 11y = -7x - 11y = -7x + 11none of the aboveWhat is the equation of the secant line formed by x = 0 and x = 3 on the function f(x) = x3 - x + 1?y = 8x + 1y = -8x - 1y = 8x - 1y = -8x + 1none of the aboveWhat is the equation of the tangent line at x = 2 on the function f(x) = x2 +x + 1?y = 5x - 3y = 5x + 3y = -5x - 3y = -5x + 3none of the aboveReviewN/ALessonFinding the equation of a tangent lineTangent Line Practicepage 103 #1-3 (odds)page 103 #5-9 (odds)page 103 #25-31 (odds)page 103 #33-37 (odds)page 103 #39-41 (odds)Derivativepage 103 #11-23 (odds)Exit TicketFind the equation of the tangent line given in class.Use the assignment submission to submit your response. Lesson Objective(s)How are secant lines and tangent lines related?How do you find the equation of a tangent line?Standard(s)APC.5Investigate derivatives presented in graphic, numerical, and analytic contexts and the relationship between continuity and differentiability.The derivative will be defined as the limit of the difference quotient and interpreted as an instantaneous rate of change.Mathematical Practice(s)#1 - Make sense of problems and persevere in solving them#2 - Reason abstractly and quantitatively#3 - Construct viable arguments and critique the reasoning of others#7 - Look for and make use of structure