Quadratic Equations: Maximum Earnings word problem ! ! ! ! !

PRECALCULUS PLAYLIST: https://goo.gl/zCAA7g _______________ In this video you will learn how to set up a Quadratic Equation with the given Algebra word problem showing relationship between the tutor's Hourly Rate and daily Number of students. A tutor has 6 students per day when he charges $35 per hour for tutoring. For every increase of $5 in hourly rate, the daily number of his students decreases by 2. What are the maximum daily earnings possible? 0:42 Assigning variables to given Info - relationship between these Variables - how a Linear Equation comes into play 2:15 Finding the Linear Equation - method #1 5:49 Finding the Linear Equation - method #2 7:12 Finding the Quadratic equation using the Linear equation 8:04 Finding Maximum Earnings using Constants a, b and c in quadratic equation form ax^2+bx+c 11:43 Alternative Method to find the Maximum Earnings using original equation E=HS (quadratic equation found right away) - how the role of Variable x changes with this method Related Videos to this topic: Linear Equations: Upstream, Downstream word problem (rate, time, distance) https://youtu.be/nV8SRILdP8g Linear Equations: Walkie Talkie word problem (rate, time, distance) https://youtu.be/r_z6khNgGtc Linear Equations: % Percent Solution word problem https://youtu.be/CpXPc-qqeLI System of Linear Equations: Elimination method https://youtu.be/JDTZsdg5fB8 System of Linear Equations: Substitution method https://youtu.be/MP8u9o0NU0g Quadratic Equations: Area & Perimeter of a Triangle word problem https://youtu.be/NSp7o3n_rlM Rational Inequalities: Using Number Lines https://youtu.be/GoaR9VTy-U4 Quadratic Inequalities: Using Number Lines https://youtu.be/DPk_-BWp-9I Absolute Value Inequalities: Using Number Lines https://youtu.be/xfrsxF-bg_U Absolute Value Equations: Complex example https://youtu.be/yUNw1kOHqHk