Question
Evaluate the function at each specified value of the independent variable and simplify.$$f(x)=\frac{|x|}{x}$$(a) $f(9)$(b) $f(-9)$(c) $f(t)$
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The absolute value of $x$, denoted $|x|$, is a value that is always positive or zero, regardless of whether $x$ is positive, negative, or zero. Show more…
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