Idiot\'s Guides Basic Math and Pre-Algebra

308 Appendix A

14. x 28 y has intercepts (0,-4) and (8,0).


15. 6218 xy has intercepts (0,9) and (3,0).

-2 062

-2

2

4

6

-4

-6

-5-4 -1-3 1345 789

-8

-9

-1

-3

-5

-7

8

9

1

3

5

7

10 11 12 13 14 15

-10

10

11

13

14

12

15

y

x

-2 062

-2

2

4

6

-4

-6

-5-4 -1-3 1345 789

-8

-9

-1

-3

-5

-7

8

9

1

3

5

7

10 11 12 13 14 15

-10

10

11

13

14

12

15

y

x

16. m yy

xx

21

21

52

47

3

3

• -^1
  2

2

2

5 2 5 55

17. m yy
    xx

21

21

64

96

2

3

5 2

--

2

1

2

55

18. m yy
    xx

 







21

21

76

84

1

4

19. m yy
    xx

21

21

15

55

6

10

3

5

555522 ---

21

20. m yy
    xx

21

21

44

83

0

5

  0









21.

y-intercept: (0,1) slope:

3

4

-

yx^3

4

• 15 1

-6 -2 062

-2

2

4

6

-4

-6

-8-9 -7 -5-4 -1-3 1345 789

-8

-9

-1

-3

-5

-7

8

9

1

3

5

7

-10 10

-10

10

y

x