1) A cliff overlooking Washington Lake is experiencing erosion, losing elevation at a rate of 5% every millennium. The cliff's current elevation is 1,600 meters. What equations represents this situation? a) y = -5x + 1600 b) y = -.05x + 1600 c) y = 1600(.05)x d) y = 1600(.95)x 2) An online recipe has 57,000 page views so far. In addition, that number continues to grow 25% every week. Which equation represents this situation? a) y = 57000(1.25)x b) y = 1.25(57000)x c) y = 57000(.25)x d) y= 1.25x + 57000 3) Dalton's weekly allowance is $5. He can also earn $1 each time he walks the family dog. Which equation represents this situation? a) y = 5(1)x b) y = 1(5)x c) y = x + 5 d) y = 5x + 1 4) Jessica walks her dog, Bella, each morning. To start, they stroll 3 blocks to warm up. After that, they jog at a rate of 2 blocks per minute. Which equation represents this situation? a) y = 3x +2 b) y = 2x + 3 c) y = 2(3)x d) y = 3(2)x 5) Valeria has $70 in a savings account that earns 10% interest, how much money will she have in the account after 2 years? a) $70.00 b) $84.70 c) $56.70 d) $.70 6) Brandon is going to the Sutter County Fair. Admission to the fair is $7, and each ride costs $2. If Brandon plans to ride 15 rides how much will he have to pay? a) $37 b) $107 c) $229376 d) $-23 7) Alvin baked 6 mini pies to donate to a charity dinner before he ran out of sugar. With each additional cup of sugar he buys, he can bake 4 more mini pies. If Alvin buys 8 more cups of sugar how many total mini pies can he make? a) 53 mini pies b) 38 mini pies c) 0 mini pies d) 8 mini pies 8) A union has successfully negotiated for its members to get 5% raises annually. If a union member currently has a salary of $58,000, what will his salary be in 3 years? If necessary, round your answer to the nearest cent. a) $2900 b) $195,750 c) $67,142.25 d) $49,727.75 9) A town doubles its size every year. If the population is currently 5,000, what will the population be in 4 years? a) 5,008 people b) 5,000 people c) 313 people d) 80,000 people

Linear vs. Exponential

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