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Cengage Log In
Login page for Cengage Precalculus online text.
Steps:
- Go to https://www.webassign.net/ and click on "Enter Class Key."
- Enter the key that you've been given by your teacher
Key: bainbridge.wa 1470 0043
- You should be able to use your current Cengage account login information to complete your initial login.
- Click on “My eBooks” to access.
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Easy Access Study Guide (supplement to textbook)
Items of Interest Contained in the Guide: instructional videos, interactive activities, data downloads, section projects, pre and post tests, math graphs, collaborative projects...
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Chapter 4
FORMULAS
ARC LENGTH: s = rθ
ANGULAR SPEED*: W = θ/t
LINEAR SPEED*: V = s/t = (rθ)/t = rW
AREA OF A SECTOR: A = (½)(r²)θ
VARIABLE DEFINITIONS
s = ARC LENGTH
r = radius
θ = central angle - angle is measured in RADIANS, so may need conversion
W = ANGULAR SPEED*
t = time
V = LINEAR SPEED*
*For our purposes, "speed" and "velocity" will be the same. (Don't tell your science teachers...)
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How to find a value of a function that is in Y1 given the x-value
How to find a value of a function that is in Y1 given the x-value
1. You could graph and use trace until you get around the x-value then look at y
2. You could go to the table and search the x-values to find the y-value
3. You could go to table set “TBLSET” and set the TblStart to the x-value, then look at the table
4. OR… Go to the home screen
5. Press “VARS”
6. Arrow over to “Y-VARS”
7. Select “1:Function”
8. Select “1: Y1” or wherever your function resides
9. Now Y1 shows up on the home screen.
10. Type a “(“ and the x-value of choice. You could finish it with a “)”
11. Push enter
Example: Y1 = 8x + 3
Y1(5) enter
43
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How to insert a regression equation into Y1
How to insert a regression equation into Y1
1. Enter data into list 1 and list 2 (see “how to calculate a regression equation”)
2. Calculate a regression equation (see “how to calculate a regression equation”) Note: your Home screen will now have the regression equation
3. Select the “Y=” button
4. At the Y1 screen, select “VARS”
5. Choose “5. Statistics”
6. Arrow over to EQ
7. Select “1: RegEQ” You should now have the regression equation you calculated in your Y1