You can put this solution on YOUR website! This function has no terms that limit the value of x. If you graph it you will see that the graph
is a straight line that crosses the y-axis at -4 and has a slope of +5. This straight line
continues on and on in both the positive and negative directions of x.
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Therefore, you can say that the domain of x includes all real numbers from minus infinity to
positive infinity or -oo < x < -oo.
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Hope this helps.
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