550 800 500 300 500 600 5000 600

550 800 500 300 500 600 5000 600 300 700 450 350 800 300 400 600 900 300 500 900 300 400 Exponential Equations “SPIN TO WIN”!

$550 A new car that sells for $44, 000 depreciates 25% each year. Write the equation that models the value of the car. a) y= 44000 (1. 25)x b) y= 44000−(0. 75)x c) y= 44000(0. 75)x d) y= 0. 75 (44000)x c ANSWER NEXT BACK

$800 The bear population in a given area is increasing at a rate of 2% per year. The population is currently about 1580. If this trend continues what it is predicted population after 8 years? Round to the nearest whole number. a) b) c) d) 1344 6793. 7 1744 1851 d ANSWER NEXT BACK

$500 Which exponential function is shown in the graph? NEXT a ANSWER BACK

$300 Which functions model Exponential decay? x a) y= 0. 5 (5) b) y= 7 (0. 3)x x c) y= -4 (2) d) y= 5 (1)x b ANSWER NEXT BACK

$500 The table below contains some points on the graph of an exponential function. Based on the table, which function represents the same relationship? x y -2 20 -1 10 0 5 1 2. 5 a) b) c) d) b ANSWER x 5(2) y= y= 5 (0. 5)x x y= 5 y= 0. 5 (5)x NEXT BACK

$600 The table below contains some points on the graph of an exponential function. Based on the table, which function represents the same relationship? x y -2 0. 24 -1 1. 2 0 6 1 30 a) b) c) d) a ANSWER x 6(5) y= y= 5(6)x x y= 6 y= 3(5)x NEXT BACK

$5000 Joana is hiring her son to point the garage. She has given him two options of paying him. She estimate the job will take 8 hours and she will pay him when the job is completed. Which option is the best? a) Option A: $15 per hours. b) Option B: First 3 hour 3$ and then she will double this for each hour until the job is done. Option b ANSWER NEXT BACK

$600 An investment of $65, 000 is increasing a rate of 3. 2% per year. The investment continues at this rate for 8 years. Find the value of the investment after 8 years. a) b) c) d) 83628 599108 2971. 56 50109 a ANSWER NEXT BACK

$300 Which functions model exponential decay? b ANSWER NEXT BACK

$700 Which exponential function is shown in the graph? a ANSWER NEXT BACK

$450 A new phone valued at $650 depreciates at a rate of 34. 3% per year. What is the value of the computer after 3 years? a) b) c) d) 970 64 26. 23 184 d ANSWER NEXT BACK

$350 Which exponential function is shown in the graph? c ANSWER NEXT BACK

$800 If the number of bacteria in a colony doubles every 13 hours and there is currently a population of 100, 000 bacteria, what will the population be 26 hours from now? a) 400, 000 b) 2, 600, 000 c) 1, 300, 000 d) 800, 000 a ANSWER NEXT BACK

$300 The table below contains some points on the graph of an exponential function. Based on the table, which function represents the same relationship? x y -2 230. 4 -1 76. 8 0 25. 6 1 8. 53 c NEXT ANSWER BACK

$400 Which exponential function is shown in the graph? NEXT a ANSWER BACK

$600 Each year the local country club sponsor a tennis tournament. Play starts with 128 participant. During each round, half of the players are eliminated. How many players remain after 5 round? a) 4 b) 2 c) 6 NEXT d) 8 a ANSWER BACK

$900 The population of Winnemucca, Nevada was 6191 in 1990 and started increasing at a rate of 4% each year. What is the equation that can model the population for the following years? a) b) c) d) y= 6191 (0. 4)x x y= 6191(1. 04) y= 6191 (1. 4)x x y= 6191(0. 04) b ANSWER NEXT BACK

$300 What graph shows exponential growth? A) B) C) NEXT B ANSWER BACK

$500 The table below contains some points on the graph of an exponential function. Based on the table, which function represents the same relationship? x y 0 1 1 5 2 25 3 125 a) b) c) d) d ANSWER x 5(2) y= y= 5 (5)x x y= 2 y= 5 x NEXT BACK

$900 A 500 m. L puddle of water is evaporating at a rate of 4% per hour. Write a function that represents the amount of water in the puddle at a given time. Use x for hours and y for the amount of water left in the puddle. a) b) c) d) y= 500(0. 96)x y= 500(1. 04)x y= 500(0. 04)x a ANSWER NEXT BACK

$300 Given the equation y = 1. 4(1. 03)x What statement is true? a) The graph shows exponential decay and the rate of decay is 1. 4 b) The graph shows exponential growth and the rate of growth is 1. 4 c) The graph shows exponential decay and the rate of decay is 1. 03 d) The graph shows exponential growth NEXT and the rate of growth is 1. 03 d ANSWER BACK

$400 NEXT b ANSWER BACK

Thank you for purchasing this game! Please stop back at my store and let me know how it went! http: //www. teacherspayteachers. com/Store/Gina-Wilson For help with editing, email me at allthingsalgebra@gmail. com If you wish to share this product with your team or colleagues, you may purchase additional licenses at a discounted rate. Just return to your “My Purchases” page to purchase at the new price. Products by Gina Wilson may be used by the purchaser for their classroom use only. All rights reserved. No part of this publication may be reproduced, distributed, or transmitted without the written permission of the author.