SOLUTION: When graphing inequalities, like - 4 > t, how do I know whether the circle is open or closed? b. Also, how do I know which way to shade down the number line? c. What does

Algebra ->  Inequalities -> SOLUTION: When graphing inequalities, like - 4 > t, how do I know whether the circle is open or closed? b. Also, how do I know which way to shade down the number line? c. What does      Log On


   



Question 1035553: When graphing inequalities, like - 4 > t, how do I know whether the circle is open or closed?
b. Also, how do I know which way to shade down the number line?
c. What does the shading represent?

Answer by rothauserc(4718) About Me  (Show Source):
You can put this solution on YOUR website!
We are give that t < -4, this is the open interval
:
( -infinity, -4)
:
if the inequality was -4 > or = t, then the interval would be
:
( -infinity, -4], this is an interval closed on the right
:
In this graph, shading would be to the left of -4 on the number line and terminated with an arrow
:
+number_line%28+600%2C+-10%2C+10%2C+-4%29+
:
shading represents the solutions to the inequality
: