Exercises 22.6, page 646

  1. 1. y = 2x + 2

    A scatterplot is modeled by the rising line y = 2 x plus 2 which begins at (0, 2).

  2. 3. y =  − 1.77x + 191

    A scatterplot is modeled by the falling line y = negative 1.77 x plus 191 which begins at (0, 191).

  3. 5. y =  − 0.308t + 9.07

    A scatterplot is modeled by a falling line that begins at (0, 9.07).

  4. 7. V =  − 0.590i + 11.3 ;  6.62 V ;  interpolation

    A scatterplot is modeled by a falling line.

  5. 9. h = 2.24x + 5.2

    A scatterplot is modeled by a rising line that begins at (0, 0).

  6. 11. p =  − 0.200x + 649 ;  549 lb/in . 2 ;  extrapolation

  7. 13. V = 4.32

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