2627 vid.notebook LT 3: October 19, 2014 I can identify and solve nonproportionate problems using tables, graphs, and equations. (y = mx + b) 1. Your family spends $60 on tickets to a hockey game and $4 per hour for parking. m = ____ b = ____ equation: _________ How much would it cost for ____ hours? 2. Your cell phone plan charges you $25 a month for the first 500 minutes plus $0.10 for every minute after that. m = ____ b = ____ equation: _________ How much would it cost for _____ minutes? 3. A red oak tree grows at a rate of 2 feet per year. You plant two red oak trees, one that is 6 feet tall and one that is 8 feet tall. Tree A m = ____ b = ____ equation: _________ Tree B m = ____ b = ____ equation: _________ What is the difference in the height of the trees after ______ years? Summary: p.26 2627 vid.notebook CW p.27 (1,2,3) October 19, 2014 P p.27 (all) p.27 1. Jason has $10 in his savings account. He adds $5 each week to his account. week $ (x) (y) m = ____ b = ____ equation: _________ 2. 3. How many weeks will it How much will Jason have in his savings after 25 weeks? take Jason to save $300? 4. Autumn's puppy weighs 3 lbs. Her puppy will gain 0.5 lb per week. lbs week (y) (x) m = ____ b = ____ equation: _________ 5. How much will the puppy weigh in 8 weeks? 6. How many weeks will it take the puppy to weigh 20 lbs? 2627 vid.notebook 24 56 79 1316 1718 1920 2122 2325 2627 October 19, 2014 check check check 34 6 89 check check check check 1516 check check 18 check Test is on Friday! check 20 check check 22 check check 2425 check 27 2627 vid.notebook October 19, 2014 To Recap Every graph we've made so far has always gone through what point? y = mx 2627 vid.notebook October 19, 2014 A new kind of example... A park charges a $10 admission fee. If you ride any rides, it is an additional $3 per ride. # rides Total Cost y = mx + b 2627 vid.notebook October 19, 2014 So what's new? yintercept How does that change our y = mx equation? y = mx + b 2627 vid.notebook October 19, 2014 QUESTION OF THE DAY: Is it still proportional if it has a yintercept other than 0? proportional NOT proportional y = mx y = mx + b 2627 vid.notebook LT 3: October 19, 2014 I can identify & solve nonproportionate problems using tables, graphs, and equations (y = mx + b) p.26 2627 vid.notebook October 19, 2014 1. Your family spends $60 on tickets to a hockey game and $4 per hour for parking. x y y x m = ____ b = ____ equation: _________ How much would it cost for ____ hours? 2627 vid.notebook October 19, 2014 2. Your cell phone plan charges you $25 a month for the first 500 minutes plus $0.10 for every minute after that. x y y x m = ____ b = ____ equation: _________ How much would it cost for ____ minutes? 2627 vid.notebook October 19, 2014 3. A red oak tree grows at a rate of 2 feet per year. You plant two red oak trees, one that is 6 feet tall and one that is 8 feet tall. tree A x y m = ____ b = ____ equation: _________ tree B x y m = ____ b = ____ equation: _________ What is the difference in the height of the trees after ______ years? 2627 vid.notebook October 19, 2014 Summary: y = mx + b 2627 vid.notebook CW P October 19, 2014 p.27 (1,2,3) p.27 (all) SHOW WORK! 2627 vid.notebook CW p.27 (1,2,3) October 19, 2014 P p.27 (all) p.27 1. Jay has $10 in his savings account. He adds $5 each week to his account. week $ (x) (y) m = ____ b = ____ equation: _________ 2. How much will Jay have in his savings after 25 weeks? 3. How many weeks will it take Jay to save $300? 4. Autumn's puppy weighs 3 lbs. Her puppy will gain 0.5 lb per week. lbs week (y) (x) m = ____ b = ____ equation: _________ 5. How much will the puppy weigh in 8 weeks? 6. How many weeks will it take the puppy to weigh 20 lbs?