daniella1304
03.12.2019 •
Mathematics
Can y’all me answer these questions
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Ответ:
2.
Domain: , because any value of is allowed and gives a number .
Range: , because for any positive real .
y-intercept: This is a point of the form . So plug in ; we get . So the intercept is (0, 2), or just 2. (Interestingly, you didn't get marked wrong for that...)
Asymptote: This can be deduced from the range; the asymptote is the line .
Increasing interval: Going from left to right, there is no interval on which is increasing, since 1/4 is between 0 and 1.
Decreasing interval: Same as the domain; is decreasing over the entire real line.
End behavior: The range tells you , and you know is decreasing over its entire domain. This means that as , and and .
3.
Domain: Same as (2), .
Range: We can rewrite . for all , so for all . Then the range is .
y-intercept: We have , so the intercept is (0, -6) (or just -6).
Asymptote:
Increasing interval: Not increasing anywhere
Decreasing interval:
End behavior: Similar to (2), but this time as and as .
Ответ: