Interval Notation for Beginners BW

Which  interval is the same as the given inequality? $x\ >7$  

•  $\left[7,\infty\right)$  

•  $\left(7,\infty\right)$  

•  $\left(-\infty,7\right)$  

•  $\left(-\infty,7\right]$  

Tags

CCSS.6.EE.B.8

Select the interval equivalent to: $x\le-4\ or\ x>6$  

•  $\left(-\infty,4\right)\cup\left(6,\infty\right)$  

•  $\left[4,6\right)$  

•  $\left(-\infty\ 4\right]\cup\left[6,\infty\right)$  

•  $\left(-\infty,4\right]\cup\left(6,\infty\right)$  

To show the endpoint of an interval is included we use a (a)   bracket.

Tags

CCSS.6.EE.B.8

Select all of the closed intervals.

• $\left[-3,5\right]$

• $\left(2,8\right]$

• $\left[7,\infty\right)$

• $\left[-10,000,\ 50,000\right]$

Tags

CCSS.HSA.REI.D.12

Write an interval for this graph.

Tags

CCSS.6.EE.B.8

Which interval corresponds to this graph?

• [0,4)

• (0,4]

• (0,4)

• [0,4]

Select the answer choice that has the correct inequality for this graph of a compound inequality.

•  $\left(-\infty,5\right]\cup\left[9,\infty\right)$ 

•  $\left(-\infty,\ 5\right]\cup\left(9,\infty_{ }\right)$ 

•  $\left(-\infty,\ 5\right)\cup\left[9,\infty\right)$ 

•  $\left(-\infty,\ 5\right)\cup\left(9,\ \infty\right)$ 

Write an inequality for this interval. $\left(5,12\right]$  

select the correct set of inequalities for this union of intervals. $\left(-3,7\right)\cup\left[10,\ \infty\right)$  

•  $-3>x>7\ or\ 10>x>\infty$  

•  $-3<x<7\ and\ 10\le x<\infty$  

•  $-3<x<7\ or\ 10\le x<\infty$  

•  $-3\le x\le7\ or\ 10<x<\infty$  

 $\left[-3,5\right]\cup\left(8,13\right)$  Wrie the set of inequalities for this union of finite intevals: