1. Concepts 1 and 2

2. A (, ) B (, ) C (, ) D (, ) E (, )

3. A ( 3, 4) – Quad I B (2,-3) – Quad IV C ( 0, -5) – Y-Axis D ( - 5, 0) – X- Axis E (-2, 1) Quad II

4. XY = 3x - 2Y(x,y)

5. XY = 3x - 2Y(x,y) 1Y = 3 (1) – 21(1,1) 0Y = 3(0) -2-2(0,-2) Y = 3(-1) -2-5(-1, -5) 2Y = 3(2) -24(2,4)

6. XY= 1/2x +2Y(x,y)

7. XY= 1/2x +2Y(x,y) 0Y = ½ (0) +22(0, 2) 2Y = ½ ( 2) +23(2, 3) -2Y= ½(-2) +21(-2, 1) 4Y= ½ (4) +24(4, 4)

8. X4 = y - xY(x,y)

9. X4 = y - xY(x,y) 04 = y – 04(0,4) 14 = y – 15(1,5) 24 = y – 26(2,6) 4 = y - -13(-1, 3)

11. (8, -2)

13. (10, -2)

15. (6, -3)

16. XY 00 17 214 321 428 535 642

17.  y = 7x

18. XY 0-3 1-2 2 30 41 52

19.  y = x - 3

20. XY 05 18 211 314 417 520

21.  y = 3x +5

22.  {(2, 3), (-1, 5), (0, -1), (3, 5), (5, 0)}

23. Yes, each x-value has exactly one y-value. Domain: (2, -1, 0, 3, 5) Range: (3, 5, -1, 0)

24.  { (5, 3), (-8, 7), (5, 1), (2,3), (-1, 5) }

25.  No, 5 is paired with more than one y-value.  Domain: (5, -8, 2, -1)  Range: (3, 7, 1, 5)

27. No, it does not pass the vertical line test.

29. Yes, it passes the vertical line test.

30. XY

31. XY 00 1 2-2 -33

32. XY

33. XY 0 -35 1

34.  Y = x - 5

35.  Y = x – 5  Infinite  (6, 1)

36.  Y = 5x + 2

37.  Infinite  (2, 12)