tajonae04
02.01.2022 •
Mathematics
The table below contains four statements.
For which function below are all four statements true?
The domain includes positive numbers.
The x-intercept of the function is 27.
The y-intercept of the function is 3.
When x increases, the function decreases.
How do I solve? Brainliest to best! 40 points!
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Ответ:
f(x)
Step-by-step explanation:
The value of y will be zero at the x-intercept. Using x=27 in the four functions, we find ...
k(27) = ∛(-54) ≠ 0
h(27) = 3∛0 = 0
g(27) = 3 +∛0 = 3
f(27) = ∛0 = 0
So, choices h(x) and f(x) match the x-intercept requirement.
__
When x=0, the function value is the y-intercept.
h(0) = 3∛27 = 3·3 = 9
f(0) = ∛27 = 3
The only function to match the x- and y-intercept requirements is f(x). It also matches the requirements for the domain and the slope.
Ответ:
25.46
Step-by-step explanation: