Building Skills

  1. 9. f(x)=x+1

  2. 11. f(x)=2x+3

  3. 13. f(x)=3x+4

  4. 15. f(x)=12x+3

  5. 17. f(x)=23x1

  6. 19.

    1. f(1)=2, f(2)=2, f(3)=3

  7. 21.

    1. f(15)=1, f(12)=1

    2. Domain: (, 0)(0, ); range: {1, 1}

  8. 23.

    Domain: (, ); range: (, )

  9. 25.

    Domain: (, ); range: (, )

  10. 27.

    Domain: (, ); range: {,3,2,1, 0}[1, )

  11. 29.

    Domain: (, ); range: [0, )

  12. 31.

    Domain: [2, ); range: [0, )

  13. 33.

    Domain: (, 4]; range: {,3,2,1, 0}[8,2]

  14. 35.

    Domain: (, ) range: (, 2)

  15. 37. f(x)={x+1ifx<23x+9ifx2

  16. 39. f(x)={2x+6ifx<24if2x<2x+3ifx2

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