Question

Which of the following sets would have a graph with an open circle on 5 and a ray pointing right on the number line?

{x | x R, x ≤ 5}
{x | x R, x > 5}
{x | x R, x < 5}

Answer 1

an open circle on a number means this number is not included in the set

eg x < 1 would be written as

Answer 2

if the circle is shaded the set would be x<= 1