What is the difference between an (open interval) and a [closed interval]?

What is the difference between an "open hole" and a closed hole in a rational function graph?

  • Answer:

    An open hole means that the value cannot be equal to. So if you were drawing x>7.5, you would put an open hole on 7.5 and then draw the line to the right (greater values). A closed hole means that the value can/is equal to. So, x>=7.5 would have a closed hole with a line to the right (greater values). Open: not included Closed: included

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An open hole means that the value cannot be equal to. So if you were drawing x>7.5, you would put an open hole on 7.5 and then draw the line to the right (greater values). A closed hole means that the value can/is equal to. So, x>=7.5 would have a closed hole with a line to the right (greater values). Open: not included Closed: included

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