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.

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  1. {x∣a≤x≤b}\displaystyle {\left\lbrace{x}{\mid}{a}\le{x}\le{b}\right\rbrace}
  2. {x∣x≤b}\displaystyle {\left\lbrace{x}{\mid}{x}\le{b}\right\rbrace}
  3. {x∣x∈R}\displaystyle {\left\lbrace{x}{\mid}{x}\in\mathbb{R}\right\rbrace}
  4. {x∣x<b}\displaystyle {\left\lbrace{x}{\mid}{x}<{b}\right\rbrace}
  5. {x∣a≤x}\displaystyle {\left\lbrace{x}{\mid}{a}\le{x}\right\rbrace}
  6. {x∣a≤x<b}\displaystyle {\left\lbrace{x}{\mid}{a}\le{x}<{b}\right\rbrace}
  7. {x∣a<x}\displaystyle {\left\lbrace{x}{\mid}{a}<{x}\right\rbrace}
  8. {x∣a<x≤b}\displaystyle {\left\lbrace{x}{\mid}{a}<{x}\le{b}\right\rbrace}
  9. {x∣a<x<b}\displaystyle {\left\lbrace{x}{\mid}{a}<{x}<{b}\right\rbrace}
 

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