Mathematics
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OpenStudy (heart_offire):
The RANGE of the function shown is
A) [4, 1]
B) [4, ∞)
C) [1, ∞)
D) [0, ∞)
http://usatestprep.com/modules/gallery/files/19/1901/1901.png
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OpenStudy (heart_offire):
why a^
ganeshie8 (ganeshie8):
Range is all the y values
Vocaloid (vocaloid):
not A
Vocaloid (vocaloid):
what's the lowest y value?
OpenStudy (heart_offire):
1
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Vocaloid (vocaloid):
good
we also see that the graph goes to infinity
Vocaloid (vocaloid):
so what's the range?
OpenStudy (heart_offire):
the range is infinity
Vocaloid (vocaloid):
we said that the lowest value is 1
Vocaloid (vocaloid):
and it goes to infinity
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Vocaloid (vocaloid):
so what's the range?
OpenStudy (heart_offire):
4
Vocaloid (vocaloid):
where is 4 coming from????
Vocaloid (vocaloid):
and can people stop giving the wrong answer please?
OpenStudy (nagrcia23347):
look at the picture please
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OpenStudy (heart_offire):
well the point on the x Like that crease
Vocaloid (vocaloid):
your range is
(lowest value, highest value)
Vocaloid (vocaloid):
our lowest value is 1
Vocaloid (vocaloid):
and our "highest value" is infinity
Vocaloid (vocaloid):
so what is our range?
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OpenStudy (nagrcia23347):
x is constant and y in infinite
OpenStudy (nagrcia23347):
x in the picture is 4
Vocaloid (vocaloid):
range = y values only
OpenStudy (heart_offire):
(1,infinty)
Vocaloid (vocaloid):
very close
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Vocaloid (vocaloid):
we use a bracket for 1 since y reaches 1
Vocaloid (vocaloid):
so [1, infinity)
OpenStudy (nagrcia23347):
are you looking at the picture???
Vocaloid (vocaloid):
so, which answer matches?
Vocaloid (vocaloid):
yes, I'm looking at the picture
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Vocaloid (vocaloid):
it's asking for the RANGE
OpenStudy (heart_offire):
i never thought the brackets mattered......its C
OpenStudy (nagrcia23347):
x is only one point the range is Y
OpenStudy (nagrcia23347):
x is always going to be 4
Vocaloid (vocaloid):
no
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Vocaloid (vocaloid):
x can be anything
OpenStudy (heart_offire):
are you talking to me or.........
OpenStudy (nagrcia23347):
but its not its four according to the picture
Vocaloid (vocaloid):
sorry @heart_offire
Vocaloid (vocaloid):
what do you think the answer is now?
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Vocaloid (vocaloid):
we just said the range was
[1, infinity)
so which answer choice matches?
OpenStudy (heart_offire):
c matches it exactly
Vocaloid (vocaloid):
perfect! so C is your answer
OpenStudy (heart_offire):
thanks! let me see if i can do others like this question
Vocaloid (vocaloid):
sure, just close this question and tag me if you need help ^^