Mr. Chernick's Math Class: 2011

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HW #1
1) Is (-1, 5) a solution of each system? prove it.
x + y = 4
x = -1

2) Is (-1, 5) a solution of each system? prove it.
y = 5
x = y - 6

3) solve by graphing. check your solution.
y = x + 2
y = -2x + 2

4) solve by graphing. check your solution.
y = x + 4
y = 4x + 1

5) solve by graphing. check your solution.
3x + 4y = 12
2x + 4y = 8

HW #2
1) Explain how you can tell from a graph the number of solutions a system of equations contain.

2) Important!!! - print out HW#3 and bring to class tomorrow. HW #3

HW #3
Finish the handout 7-1 HW #3

HW #4
solve and check using the substitution method

y = 4x - 8
y = 2x + 10

y = x - 2
2x + 2y = 4

3x - 6y = 30
y = -6x + 34

HW #5
solve and check using the substitution method

3x + 6y = -6
5x + y = -10

y = 2x
7x - y = 15

HW #6
solve by elimination

2x + 5y = 17
6x - 5y = -9

2x - 3y = 61
2x + y = -7

20x + 3y = 20
-20x + 5y = 60

HW #7
solve by elimination

3x -10y = -25
4x + 40y = 20

7x + 15y = 32
x - 3y = 20

2x + 4y = 8
5x + y = -7

HW #8
textbook page 399 #1, 2

HW #9
textbook pages 407 - 410 # 1, 13, 34, 36, 50

HW #10
textbook pages 414 - 415 # 1, 2, 8, 11

HW #11
no homework

HW #12
study for your exam

HW #13
textbook page 433 # 1-5, 17, 18, 39, 40

HW #14
textbook page 433 # 9 , 30, 42, 55
textbook page 439 # 7, 11, 19, 21

HW #15
textbook pages 438 - 440 # 1, 13, 20, 28, 29

HW #16
textbook page 443 # 5, 7, 10, 20, 22, 26

HW #17
textbook pages 449 - 450 # 1, 5, 8, 12, 13

HW #18
textbook page 456 # 7, 8, 11, 21, 24

HW #19
no homework

HW #20
textbook pages 479 - 480 # 1, 26, 27, 31, 32

HW #21
no homework

HW #22
textbook page 497 #17, 23, 28, 30, 37

HW #23
textbook pages 501 & 502 # 1, 14, 16, 20, 23

HW #24
textbook page 507 # 13 - 16

HW #25
textbook page 515 # 4, 15
textbook page 531 # 13, 22, 23

HW #26
textbook page 521 # 5, 6, 21, 22

HW #27
textbook page 531 # 1, 6, 24, 26, 32

HW #28
textbook page 539 # 54, 60, 61, 69

HW #29
study for your exam

HW #30
textbook page 553 # 1, 2, 3, 10

HW #31
textbook page 560 # 1, 2, 3

HW #32
textbook page 567 # 10, 12, 13, 14

HW #33
textbook page 574 # 1, 3, 10, 13, 15

HW # 34 - no homework

HW # 35
Handout 10 - 6 # 10, 11, 12

HW # 36
Handout 10 - 7 # 13, 14, 15

HW # 37
study for your exam

HW # 38
textbook page 619 # 3, 4, 10, 12, 14, 23

HW # 39
textbook pages 619-620 # 21, 22, 29, 40, 45

HW # 40
textbook page 625 # 1, 3, 12, 18, 19

HW # 41
textbook page 625 # 22, 24, 28, 29

HW # 42
textbook page 625 # 32, 33

HW #43
textbook page 648 # 1 - 6

HW #44
textbook page 648 # 15 - 17

HW # 45
no homework

HW # 46
study for your exam

HW #1
textbook page 674 # 1, 9, 14, 17, 20

HW#2
textbook page 679 # 11, 24, 29, 30

HW#3
textbook page 689 & 690 # 18, 20, 23, 39

HW#4
none

HW#5
textbook page 695 # 1, 2, 5, 6

HW#6
none

HW#7
none

HW#8
none

HW#9
study for your exam

HW#10
textbook page 313 # 10, 13, 22, 23, 24, 25

HW#11
textbook page 320 # 2, 6, 13, 41

HW#12
textbook page 320 # 7, 9, 23, 32, 37

HW#13 - skip
textbook page 328 # 19, 20, 21, 29

HW#14
none

HW#15
textbook page 333 # 2, 16, 18, 23, 24

HW#16
textbook page 333 # 7, 19, 20, 30

HW#17
textbook page 339 # 1, 5, 22

HW#18
textbook page 346 # 10, 15, 17

HW#19
textbook page 346 # 19, 25, 32, 38, 39

HW#20
none

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