What is the range of $f (x) = | - 2 x - 1 |$ $f(x) = abs(-2x-1)$ ?

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Answer 1 · 2015-05-04T23:25:11

$- 2 x - 1$ $-2x-1$ can be used to generate any Real number with an appropriate value selection for $x$ $x$

$| - 2 x - 1 |$ $abs(-2x-1)$ restricts the generated values to those greater than or equal to zero (by definition of absolute value).

Range of $f (x) = | - 2 x - 1 |$ $f(x)=abs(-2x-1)$
is $[0, + \infty)$ $[0,+oo)$

What is the range of f(x) = abs(-2x-1)f(x)=|−2x−1|f(x) = abs(-2x-1)?