Let a\displaystyle {a}  and b\displaystyle {b}  be real numbers with a<b\displaystyle {a}\lt{b} . Match each set builder expression with the correct interval by selecting a letter from each drop down selector.

  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  •  
  1. (−∞,+∞)\displaystyle {\left(-\infty,+\infty\right)}
  2. (a,b)\displaystyle {\left({a},{b}\right)}
  3. [a,+∞)\displaystyle {\left[{a},+\infty\right)}
  4. [a,b)\displaystyle {\left[{a},{b}\right)}
  5. (−∞,b]\displaystyle {\left(-\infty,{b}\right]}
  6. (a,+∞)\displaystyle {\left({a},+\infty\right)}
  7. [a,b]\displaystyle {\left[{a},{b}\right]}
  8. (−∞,b)\displaystyle {\left(-\infty,{b}\right)}
  9. (a,b]\displaystyle {\left({a},{b}\right]}
 

License