The percentage rate of increase is 36.2% and the exponential function represent the growth.
<h3>What is an exponential function?</h3>
It is defined as the function that rapidly increases and the value of the exponential function is always a positive. It denotes with exponent ![\rm y = a^x](https://tex.z-dn.net/?f=%5Crm%20y%20%3D%20a%5Ex)
where 'a' is a constant and a>1
We have exponential function:
![\rm y = 8900(1.362)^x](https://tex.z-dn.net/?f=%5Crm%20y%20%3D%208900%281.362%29%5Ex)
If we compare with
![\rm y =a(1+r)^x](https://tex.z-dn.net/?f=%5Crm%20y%20%3Da%281%2Br%29%5Ex)
If 1+r > 1
1.362 > 1
So the growth rate r is
1 + r = 1.362
r = 0.362
r = 0.362×100
r = 36.2%
Thus, the percentage rate of increase is 36.2% and the exponential function represent the growth.
Learn more about the exponential function here:
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This has to do with subtraction.
Eric started with 2 liters of water so he and his friend drank it so this is what you would do:
2-0.42-0.32= 1.26
so Eric he would have 2.26 liters of water left.
If y⁸ is a function of x, that means that there cannot be more than one y value for each x value. You can test this by either doing the vertical line test, which requires you to graph the equation. To do this test, draw an imaginary vertical line anywhere on the graph. If the line crosses the curve at more than one place, it is not a function. Based on the graph (see below), this equation is a function of x.