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Find the annual percent increase or decrease that y

Can you check my answers and if wrong, please explain! Thanks!Find the annual percent increase or decrease that y = 0.35(2.3)^x models.A. 230% increase B. 130% increase C. 30% decrease D. 65% decreaseMy answer was A. 230% increase
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Dr. Juanita Wolff

Feb 20, 2025

I believe you are right.If x measures time (in years) then the value of y this year is 0.35·2.3^x, and next year it's 0.35·2.3^(x+1)0.35·2.3^x · /annual increase/ = 0.35·2.3^(x+1)2.3^x · /annual increase/ = 2.3^(x+1)/annual increase/ = 2.3^(x+1) / 2.3^x /annual increase/ = 2.3 = 230%edit. I think Ed I is right, but I'm not really familiar with the exact meaning of this term (in english).1+/annual increase/ = 2.3/annual increase/ = 1.3 = 130%... Show More
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Dr. Juanita Wolff

Feb 20, 2025

The percent of increase is the amount over 100%, i.e. 130%.B... Show More
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