amberskids2
29.10.2019 •
Mathematics
How to find an exponential function with two points?
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Ответ:
a is the initial amount
b is the growth factor
and x is the exponent
the first step is to make a chart with ur two points for example
(0,4) and (2,16)
so ur chart will be
x. | y.
0. | 4
2. | 16
next you find the difference between the x side so 0 to 2 is +2
then find the difference between the y side so 4 to 16 is +12
then put it into a fraction with y over x or y/x so 12/2 then simplified 6/1 or just 6.
6 is the growth factor
and to find a u have to go on the y column and find the first number so
a is 4
x is still x because it's 0 but if it was 2 then it would be x-2 so it can cancel
so the answer would be y=4 • 6^x
Ответ:
3 and 1/2 units
Step-by-step explanation: The distance from -2 to 1 is 3 units, and then add the 1/2 to get 3 and 1/2. Hope this helps!