DOC PREVIEW
Purdue MA 15300 - Study Guide

This preview shows page 1 out of 2 pages.

Save
View full document
View full document
Premium Document
Do you want full access? Go Premium and unlock all 2 pages.
Access to all documents
Download any document
Ad free experience
Premium Document
Do you want full access? Go Premium and unlock all 2 pages.
Access to all documents
Download any document
Ad free experience

Unformatted text preview:

Cengage (Thomson) Now Hints for Lesson 25, 26 and 27 In general: You can visit www.math.purdue.edu/MA 153 and use the discussion board to post questions and/or read responses. Kristin will be live on that board MWF from 6:30-8:30 pm all semester. If you post a question at a different time, she will respond as soon as she is able. Do not post after 8:30 pm on a due date and expect an immediate answer. She will not help you as a tutor, but may provide some hints. Please do not expect her to solve things for you. In general, use Mozilla browser with a PC. Internet Explorer can cause technical issues with Cengage Now problems. We recommend using an ITAP computer or following the configuration instructions on the Cengage Now homepage. If you log in and see a message that says popups are blocked, enter Cengage Now anyway. That error does not affect your assignments. However, a current version of Java must be installed for Cengage Now to work properly. If the system check detects a Java problem, follow the instructions given to correct that. You can always view the correct answer to each problem after submitting the assignment. Click on “view assignment details”. It will show you what you entered and what the correct answer was. If you log back into the assignment, you will get a different version of the problems that were not correct. Correct problems stay correct and you do not redo them. Lesson 25: #3 (a) Math hint: Zeros are the same thing as x-intercepts, except you do not write them as ordered pairs. (b) Remember to specify if a minimum or maximum before listing the value. For example, if you find the value to be 5 and determine it is a max, then enter as: max, 5. (e) Same as zeros but enter as ordered pairs. #5 (c): Math hint: You don’t need the quadratic formula for this part. Once you have found the standard form, you can square root both sides of your equation to find the x-intercepts. For example, the parabola ()2411yx 5=−++ is in standard form. The x-intecepts are found in the following steps:()()2204 111514151415121512xxxxx=− + +=++=±+=±=− ±5 This can be entered as 151,2⎛⎞−±⎜⎜⎝⎠0⎟⎟ or separated as two points #6, 7, 8, and 9: Enter y= preceding the standard form #9 and 10: Math hint: The directions say to find the standard form of the parabola that has a “vertical axis”… Vertical axis just means the parabola opens up or down and we only deal with this type. Lesson 26 #2 (c): Enter the dimensions as an ordered pair (x,y). #4: Do not use decimals. Use fractions throughout the problem (if needed) and reduce fractions to lowest terms. Lesson 27 On all problems, be sure to simplify your answer before entering online. #3: (d) Math hint: Be careful about parantheses. To simplify ()22x−−, you would have ()4x− or 4x−. #7: Math hint: This is an equation to solve. Find the composition first, then set it equal to zero and solve. You can square root both sides (that would be the easiest way to solve it). #10: Math hint: You must simplify your answer. For example, if your answer is 3729)( ttr = , you must simplify to ()()39 ttr = . Enter 3from the x pulldown (on the top row right next to the trash can). There will be a box on the outside of the radical to enter the index and a box under the radical to enter the rest. Do not enter r(t)=. #11 Math hint: You must simplify the answer similar to what is above. There will be a number that can be taken out from under the radical. Do not include h(t)= with your


View Full Document

Purdue MA 15300 - Study Guide

Download Study Guide
Our administrator received your request to download this document. We will send you the file to your email shortly.
Loading Unlocking...
Login

Join to view Study Guide and access 3M+ class-specific study document.

or
We will never post anything without your permission.
Don't have an account?
Sign Up

Join to view Study Guide 2 2 and access 3M+ class-specific study document.

or

By creating an account you agree to our Privacy Policy and Terms Of Use

Already a member?