Graph each inequality
\[y \le7 \]
any help i would appreciate it
probably this: because it is less than or equal to, then the circle is filled in. put a circle at the 7, draw to the left to show the values of y that are less than 7. is this what you've been learning? |dw:1332452709618:dw|
yes but i dont understand this topic at all
ok, which part of my typed response was confusing?
why it is filled in can the circle be not filled in
Ok: for the symbols \[\le \] and \[\ge\], the circle is filled in, because the value of y is less than or equal to 7. this means it could be equal to 7. then these symbols are used, the circle is filled in. for < or > the circle is an open circle. for example, x < 3 means that x is less than 3 but not including 3. everything smaller than 3 but not including it. ok so far?
yes so far
That's about it for the circles, they are either filled in or not. For example, if you had \[4 \le x < 8\] you would get this: |dw:1332453211206:dw|
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