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b= a= y=a*bx vocab word that mean decay factor Which of the following mean DECAY? appreciate depreciate increase decrease reduce gain lose earn To find the common ratio for GROWTH, you need to the growth rate to 1. To find the common ratio for DECAY, you need to the decay rate from 1. add subtract add subtract People who had jobs in the coal industry are leaving a small mining town as the industry is dying. The town had 100,000 people in it at the beginning of 2002, and since then 15% of the population leaves every year. Initial value = Decay rate = Decay factor = % or decimal: *no commas *Use a leading zero. An adult takes 400 mg of ibuprofen. Each hour the amount of ibuprofen in the person’s system decreases by about 29%. How much ibuprofen is left after 6 hours? Initial value = Decay rate = Decay factor = % or decimal: *Use a leading zero. Initial value = Decay rate = Decay factor = Radioactive materials like plutonium decay so that after a certain time, only half of the original material is left. It takes a 120g sample of plutonium 80 years to decay by half. ***Type your decay factor the way DESMOS would! % or decimal: 0.5 .5 .50 .05 (Choose all versions that apply.) You buy a new computer for $2,100. The value of the computer decreases by 49% annually. Initial value = Decay rate = Decay factor = % or decimal: *no commas *Use a leading zero. Ms. Foster wants to buy a new phone, but she's cheap. Sheknows that every year after a phone is released, its sale price decreases by 30%. The phone she wants originally cost $995. She refuses to pay more than $500. How manyyears must she wait to buy it? Initial value = Decay rate = Decay factor = % or decimal: *Use a leading zero and write it like Desmos would! |