The range of a function is the set of all possible values...

Free Practice Question

PS · Problem Solving

705-805

Functions

The range of a function is the set of all possible values of the function. If the function f is defined by

f(x) = \frac{1}{x^2 + 1}

for all real numbers x, the range of f is the set of

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A

all real numbers

B

all real numbers except -1 and 1

C

all positive real numbers

D

all real numbers greater than or equal to 0 and less than or equal to 1

E

all positive real numbers less than or equal to 1

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