yes
When graphing inequalities you use a circle to indicate a value on a graph. If the value is included in the solution to the inequality you would fill in the circle. If the value that the circle represents is not included in the solution you would leave the circle unshaded.
When the value represented by the circle is part of the solution set.
If the inequality is > or< then it is an open circle. If it is greater than or equal to or less than or equal to, it is a closed circle.
Compasses make the job much easier!
Pi x radius squared ∏r2
Truthfully the purpose of graphing a circle helps to show the points in a data set. If you're also going to shade, by graphing a circle you save time in functionality to figure out what and where your data sets will be.
we use open circle
yes
When the value indicated by the circle is a valid value for the inequality.
When graphing inequalities you use a circle to indicate a value on a graph. If the value is included in the solution to the inequality you would fill in the circle. If the value that the circle represents is not included in the solution you would leave the circle unshaded.
When the value represented by the circle is part of the solution set.
If the inequality is > or< then it is an open circle. If it is greater than or equal to or less than or equal to, it is a closed circle.
Compasses make the job much easier!
change it to polar mode and then plot r = any constant
I dunno an who cares! we use closed circles when we include the number on which it is and if we dont want to include it then we use open circle
A closed circle is when a range of numbers also includes that number and an open circle is when a range of numbers doesn't include that number, :)