Algebra and Trigonometry, 5th Edition

1.3 Exercise Set

In each of Exercises 1–4, the table of data lists input–output values for a function. Answer the following questions for each table.

1. Is the change in the inputs x the same?

2. Is the change in the outputs y the same?

3. Is the function linear?

1. 1.

   x	y
   −3	7
   −2	10
   −1	13
   0	16
   1	19
   2	22
   3	25

2. 2.

   x	y
   20	12.4
   30	24.8
   40	49.6
   50	99.2
   60	198.4
   70	396.8
   80	793.6

3. 3.

   x	y
   11	3.2
   26	5.7
   41	8.2
   56	9.3
   71	11.3
   86	13.7
   101	19.1

4. 4.

   x	y
   2	−8
   4	−12
   6	−16
   8	−20
   10	−24
   12	−28
   14	−32

Find the slope of the line containing the given points.

1. 5.

2. 6.

3. 7.

4. 8.

5. 9.

6. 10.

7. 11. (9, 4) and (−1, 2)

8. 12. (−3, 7) and (5, −1)

9. 13. (4, ...