NATE Do the correct day! I'm no longer here to tell you the day, figure it out!

WORDS!!!!!!!!!!!!!!!!!!!!!!!!!!!

exam review - 331 problems total

No calculator - 268 problems
integer review - 48 problems
decimal review - 26 problems
fraction review - 20 problems
order of operations review - 17 problems
percent review - 63 problems
percent review #2 - 17 problems
solve for x review - 26 problems
ratio and rates review - 20 problems
geometry review #1 - 14 problems
geometry review #2 - 18 problems
geometry review #3 - 19 problems


calculator - 63 problems
setting up and solving unit conversions - 8 problems
chapter 1 review - 20 problems
chapter 1 review - book problem 1-6, 8-10 (answers in Discovering Algebra book)
chapter 2 review - 16 problems
chapter 2 review - book problems problems 1-10 (answers in Discovering Algebra book)

Due Friday, May 15
direct and inverse variation problems 1-5, and 9-13

Due Thursday, May 14
section 2.5 (again) problems

• 3rd day, no hints this time
• 11
• 12

section 2.5 additional problems problems

• 1 
• 2
• 5

Due Wednesday, May 13
section 2.5 problems

• 6 
• Is the table direct, inverse or neither?
• If it is direct or inverse, what is the equation?
• 7 - the "constant of variation" is k
• 8 - the distance from the fulcrum is inversely proportional to the weight of the person, therefore distance and weight are x and y. If a seesaw is balanced, k on one side must equal the k on the other side.
• 9b - same as problem 8
• 10 
• the number of students raising money is inversely proportional to how much money each student needs to raise. 
• $10,000 is k
• 10b, graph using calculator, important! Set window so your points fill the screen, make xmin=0 and ymin=0. What should xmax and ymax be? xscl and yscl can be anything.

Due Tuesday, May 12

section 2.5 problems

• 1 just rewrite into y=k/x form
• 2 solve for k to make the equation, then use the equation 
• 3 use the equation 
• 4 
• define x and y
• solve for k
• if k is the same for each of the three situations then it is inverse. If k is different it is not inverse variation
• 5 "time it takes to travel a given distance is inversely proportional to how fast you travel". The distance you travel is constant so it is k. The "time" and the "how fast you travel" (speed) are y and x.

In class Monday, May 11

• Read introduction
• Skip investigation
• Read Example A
• Read definition of Inverse Variation 
• Read Example B
• Conduct the "ruler-balance" investigation (Example B)

Due Monday, May 11
section 2.4 additional problems problems 2, 3, 4, 5
section 2.4 problem 10, 11

Due Friday, May 8
section 2.4 problems

• 1, you do not need to graph this, just plug the numbers into the equation and solve for unknown. Based on the previous paragraph the equation is Km = (1.6)(miles)
• 5
• You have the equation. Plug the values and solve for the unknown. 
• What are the units on 1.25? Remember, k is always a unit rate
• 6 - What does x mean in this case? What does y mean in this case?
• 6a fill out the table
• 6b 
• Enter Market A data into L1 and L2. Enter Market B data into L3 and L4. turn on statplot 1 and 2 (graph points, not points with lines).
• Enter your equation for Market A into Y1. Enter Market B equation into Y2. Don't forget, your equation needs an x in it.
• Set the window so you can see all data. Set xmin = 0, ymin = 0. set xmax and ymax so you can see the largest data values
• Graph it all. If the lines go through the points you did it correctly!
• 6c - hint, you already should have answered this in 6b
• 6d - tell me the answer based on looking at the graph. (slope)
•  7 
• 7a, make the table using the graph to determine what the missing values are. Of course the missing values will not be exact, just make them as close as you can. Pay attention to the units.
• 7b, just like in problem 6b, use the data to create and equation. Remeber:
• step 1, define x and y
• step 2, plug values into x and y and solve for k
• 7c use your equation to solve for a y value
• 7d use your equation to solve for an x value

Due Thursday, May 7

• section 2.3 problem 9, 10, 11 
• section 2.3 additional problems 2, 4a, 4b

Due Wednesday, May 6
section 2.3

• do the investigation, the objective is to develop a conversion factor which can convert cm to in or in to cm
• problems 1, 2 (1 mile = 5280 ft), 3, 4a, 4b, 5a, 5b, 6

Due Tuesday, May 5
section 2.2 problem 5, 6
section 2.2 additional problems problem 2 {use the percent equation, not proportion                   (percent)(whole)=part}, 3, 4

Due Monday, May 4
section 2.1
problems:

• 1
• 2 - All ratios written as fractions must be in most reduced form.
• 5a, 5b, 5c, 5d
• 6 - When writing a ratio you must pay attention to the units. For example: if the units are g/Kg=g/Kg that is OK. However, you can also write this as g/g=Kg/Kg because the units cancel each other so both sides of the ratio are unit-less, which is the same (note: the numerator and denominator must represent the same thing). Problem 6c, you will need to change some units to make this problem work.
• 7a, 7b - Remember that every proportion can be written in 4 different ways.
• 8
• 9
• 10
• 11

Due Wednesday, April 29
chapter 1 review #2

CHAPTER 1 ASSESSMENT, THURSDAY, APRIL 30

chapter 1 review problems

• 1
• 2
• 4a
• 4c
• 5a
• 5b - on your calculator, show me
• 5c - on your calculator, show me
• 8
• 9a
• 9b - paper and pencil
• 9c - stem and leaf - paper and pencil
• 9b - paper pencil, remember the number line
• 9e

In class, Monday, April 20

• Enter the following coordinate points in L1 and L2. There should be 51 entries in L1, same for L2.
• Turn on statplot, set window and graph to see the "secret message".
• Plot some of the points manually to understand how I did this.
• Make your own "secret code". Note: curved letters like "C" take a lot of points! First draw the letters on graph paper. Determine the coordinates and the order. Then enter in statplot and see if it worked!

L1	L2		L1	L2		L1	L2		L1	L2
0	0		9	0		13	0		21	0
3	9		7	1		13	9		19	1
4	6		6	4		16	8		18	2
3	6		6	5		17	7		19	1
4	6		7	8		18	5		21	0
6	0		9	9		18	4		23	1
			11	8		17	2		24	2
			12	6		16	1		24	3
			11	8		13	0		23	4
			9	9					21	4.5
			7	8					19	5
			6	5					18	6
			6	4					18	7
			7	1					19	8
			9	0					21	9
			11	1					23	8
			12	3					24	7
			11	1
			9	0

Due Thursday, April 16
section 1.7 additional problems

• problem 2
• Answer entire problem, including c
• Do on your calculator. Show me the calculator in class tomorrow.

Due Tuesday, April 14
section 1.7 problems

• 2
• 4
• 5 - understand the notation under the graph [0, 20, 5, 0, 700, 100] you will see this a lot.
• 9
• 10

Due Monday, April 13

• Make a rectangle on your calculator with vertices in each of the 4 quadrants. 
• Make a triangle inside the rectangle with different varieties than the rectangle. Make one of the triangle vertices on the y-axis.
• Show me the image.

section 1.6

• problems 2, 9

section 1.6 additional problems

• problem 3

calculator notes - scatter plots

Due Friday, April 10
section 1.6
problems 4, 5, 8, 10

Due Thursday, April 9
section 1.3 additional practice  problems 3, 4, 5
section 1.4 additional practice  problems 1, 2, 4
Note: section 1.4 problem 2 you need to do this with paper and pencil, not a calculator. It can be done with a calculator but it is much trickier than it looks.