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skyhe34
01.02.2022 •
Mathematics
How do you know if a function is a growth
function?
A. a > 1
B. b> 1
C. 0 < b < 1
Solved
Show answers
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Ответ:
B. b > 1
Step-by-step explanation:
When the function is ...
f(x) = a·b^x
it is a growth function when b > 1, and a decay function when b < 1.
__
Additional comment
If you have f(x) = a·b^-x with a negative multiplying the exponent, it is equivalent to a·(1/b)^x, which will be a growth function if (1/b) > 1, or b < 1. In short, pay attention to the sign of the exponent as well as the base value.
Ответ:
3
Step-by-step explanation: