Pg. 117/139 Homework Study for tomorrow’s test tonight!! #44 -16t t = 0#45Graph in Q1 #46 (0, 7.84)#47t = 7.84 sec #48 -16t t = 0; Graph in Q1; (0, 17.73); t = sec #49 A(x) = 4x x#50200 < 4x x < 360 #51 (1.86, 3.19)#78P = 5.15x – (1.26x + 34,000) #79 x ≥ 19, lb#80at least 19, lbs #81 A(x) = 4x x# < 4x x < 3900 #83 (3.99, 5.33)#84s(t) = -16t t + 30 #85 Graph in Q1 #86t = 2.47 sec and t = sec

Chapter 2 Review Solve – Difference between Zeros and Graphing Solve Algebraically Solving Inequalities – Write your answers in Set Notation!! Sign Patterns – How do you know to do a sign pattern? Derive the Quadratic Formula Word Problems!!!

Chapter 2 Review Solve Remember: – When you see “Solve” and there are two variables, you graph! – When there is one variable with no instructions, go by the easiest means possible!! Solve: Solving for x Algebraically If you are told to solve algebraically without a specific method, use the one that is easiest for you! Solve for x algebraically:

Chapter 2 Review Sign PatternsProfit/Revenue/Cost Make a sign pattern for the following functions: John sells widgets at $5 each, but it costs him $1.50 to make each widget. He has fixed costs of $200. – Write the total cost equation – Graph it and give the D and R – Write the total revenue equation – When will John break even? – What does (16.5, ) mean in the total profit equation?

Chapter 2 Review Word Problems Know: – Anita walking from the lamp – Semi-circle on the square – Spherically Shaped Balloon – Area and Perimeter problems – Volume of a box – Picture Border – Projectile Motion – Anything from homework or class work is fair game!! Deriving the Quadratic Formula You derive the quadratic formula by completing the square from ax 2 + bx + c = 0! Use as many or as little steps as you need to portray that you know what you are doing and that I can follow your work! You can’t just have the first and last step!!