Question
Graph.$$f(x)=\left\{\begin{array}{ll}1, & \text { for } x<0 \\-1, & \text { for } x \geq 0\end{array}\right.$$
Step 1
The function $f(x)$ is defined as $1$ for $x<0$ and $-1$ for $x \geq 0$. This means that the function takes the value of $1$ for all $x$ values less than $0$ and the value of $-1$ for all $x$ values greater than or equal to $0$. Show more…
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