How do you write the interval [5, +infinity) as an inequality involving x and show each inequality using the real number line?

1 Answer
smendyka
Dec 10, 2017

See a solution process below:

Explanation:

Because the left side of the interval is a "[" or bracket, then the inequality contains the value there which is #5# and so the inequality we right will contain an "or equal to" clause":

#x >= 5#

On the number line the left side of the line representing this interval will be a solid circle indicating the inequality contains an "or equal to" clause":

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