Mr. Chernick's Math Class

Geometry

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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

Algebra - things to remember (formulas)

Regents reference sheet

Algebra regents review questions

integrated algebra regents answers

Extra Credit Projects

A. Find the greatest common denominator of 1160718174 and 316258250.

Show all of your work how you arrived at this. Hint: Euclidean algorithm

B. Both questions must be answered correctly to recive the extra credit. Also, I want to see your work with an explanation. Not just an answer. Just submitting the answer will not get you the extra credit, even if you are correct.
1. you have 200 coins. they are numbered 1 thru 200. When you start, they are all on heads. in the first pass you flip every coin over(now they all should be on tails). Pass 2 you flip over every other coin (i.e. coin 2, 4, 6, .....etc. are now heads). Pass 3 you flip every third coin. You do this for 200 passes and follow the pattern of flipping the coins. At the end of 200 passes how many coins will be on tails?
2. You have a 7 x 7 matrix. the only moves you are allowed to make are going to the right and going down. you can NOT go diagonally, or up or left or backwards. How many different ways are there to get from the top left box to the bottom right box?

C. 1. you are given six equal sticks all of which have the same length and shape. create four triangles that are equal (congruent) in every aspect.
2. Draw a regular hexagon. your goal is to make a cube out of this shape by adding only three extra lines.

Mr. Chernick's Math Class

Geometry

Integrated Algebra C & D

Extra Credit Projects

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