Exponential Functions Basic
An element with mass 490 grams decays by 28.6% per minute. How much of the element is remaining after 16 minutes, to the nearest 10th of a gram?
2.2
Given the following exponential function, identify whether the change represents growth or decay, and determine the percentage rate of increase or decrease.
y=15(0.94)^X
6% Decrease
Determine if the sequence below is arithmetic or geometric and determine the common difference / ratio in simplest form.
19,14,9,..
This is an arithmetic sequence and the common difference is equal to -5
An element with mass 730 grams decays by 27.6% per minute. How much of the element is remaining after 12 minutes, to the nearest 10th of a gram?
15.1
Given the following exponential function, identify whether the change represents growth or decay, and determine the percentage rate of increase or decrease.
y=10(0.91)^X
9% decrease
A town has a population of 5000 and grows at 2% every year. What will be the population after 5 years, to the nearest whole number?
5520
Given the following exponential function, identify whether the change represents growth or decay, and determine the percentage rate of increase or decrease.
y=7000(1.97)^X
97% Increase
A town has a population of 10000 and grows at 5% every year. What will be the population after 5 years, to the nearest whole number?
12763
Given the following exponential function, identify whether the change represents growth or decay, and determine the percentage rate of increase or decrease.
y=20(0.534)^X
46.6% Decrease
7800 dollars is placed in an account with an annual interest rate of 6.5%. How much will be in the account after 29 years, to the nearest cent?
48443.25
Given the following exponential function, identify whether the change represents growth or decay, and determine the percentage rate of increase or decrease.
y=93(0.65)^X
35% Decrease