Page 1 of 2 12 LastLast
Results 1 to 10 of 12

Thread: Converting graph coordinance into an equation and finding the slope and y intercept

  1. #1

    Converting graph coordinance into an equation and finding the slope and y intercept

    I am at a loss when it come to algebra. I have been in this class for four weeks, at this point I have a 68 average because I am teaching myself. No help from my instructor other than refer to the instructors policy.Please help.

    This is the problem, I really need help from beginning to end. I feel like a child needing to be walked through how to do it.

    The water line is given by the equation:y=-2/3x-12
    Imagine you want to put a pink flamingo lawn ornament in your backyard. You want to avoid placing it directly over the water line in case you need to excavate the line for repairs in the future. Could you place it at the point (-4,-10)?


    I am not searching for the answer,just help on how to get it. The past four weeks are the only algebra I have ever taken. At this point I am feeling extremely helpless.Any help would be greatly appreciated.

    Thankful for any help I can get.




  2. #2
    Elite Member
    Join Date
    Jun 2007
    Posts
    17,055
    Quote Originally Posted by Glnzangel View Post
    I am at a loss when it come to algebra. I have been in this class for four weeks, at this point I have a 68 average because I am teaching myself. No help from my instructor other than refer to the instructors policy.Please help.

    This is the problem, I really need help from beginning to end. I feel like a child needing to be walked through how to do it.

    The water line is given by the equation:y=-2/3x-12
    Imagine you want to put a pink flamingo lawn ornament in your backyard. You want to avoid placing it directly over the water line in case you need to excavate the line for repairs in the future. Could you place it at the point (-4,-10)?


    I am not searching for the answer,just help on how to get it. The past four weeks are the only algebra I have ever taken. At this point I am feeling extremely helpless.Any help would be greatly appreciated.

    Thankful for any help I can get.



    y = - 2/3 x - 12

    First of all - do you understand what is meant by co-ordinates of a point?

    You do not want to put the ornament at point, whose co-ordinates satisfies the equation of the line.
    “... mathematics is only the art of saying the same thing in different words” - B. Russell

  3. #3
    [QUOTE]y = - 2/3 x - 12

    First of all - do you understand what is meant by co-ordinates of a point?

    You do not want to put the ornament at point, whose co-ordinates satisfies the equation of the line.



    Maybe.
    I understand very little of this I have never taken any algebra. I am so lost. I did know by looking at the graph that the flamingos would be sitting right up against the line, but nothing more.

  4. #4
    Elite Member
    Join Date
    Jun 2007
    Posts
    17,055
    [QUOTE=Glnzangel;295371]
    y = - 2/3 x - 12

    First of all - do you understand what is meant by co-ordinates of a point?

    You do not want to put the ornament at point, whose co-ordinates satisfies the equation of the line.



    Maybe.
    I understand very little of this I have never taken any algebra. I am so lost. I did know by looking at the graph that the flamingos would be sitting right up against the line, but nothing more.
    If you have never taken any algebra - then this class would be above your skill-level.

    You need a face-to-face tutor.
    “... mathematics is only the art of saying the same thing in different words” - B. Russell

  5. #5
    This I already knew, but I wasn't asked what math I would like to take. This is the class that is requiered, and I really need help.

  6. #6
    Elite Member mmm4444bot's Avatar
    Join Date
    Oct 2005
    Location
    Seattle
    Posts
    8,935
    I'm guessing that you're taking an on-line math course. This is not a good idea, for people who struggle with math; on-line math courses are okay, for people who have the ability to "catch on fast" and the skills to recognize and deal with things like poor wording, errors in materials, and technical difficulties.

    You're probably in over-your-head because on-line courses require those enrolled to be both the student and the teacher. How can a person teach themselves something that they do not really understand to begin with? The answer is: by putting forth ten times as much effort as needed in a traditional classroom.

    I agree with Subhotosh; you need intense, face-to-face tutoring, to catch-up and keep-up with this course. Does your school provide tutoring resources? You should probably also schedule a conference with your instructor, to advise them of your situation and ask for advice.




    Quote Originally Posted by Glnzangel View Post

    I [do] know by looking at the graph that the [flamingo] would be sitting right up against the line

    The flamingo is located at the point (-4, -10).

    This point is not close to the line, so I'm not sure what graph you're looking at.

    The exercise does not ask whether or not the point (-4, -10) is "right up against the line".

    The exercise wants you to determine whether or not the point (-4, -10) is on the given line.

    You can verify whether or not the point (-4, -10) is on the line by checking to see if the coordinates of the point satisfy the equation of the line.

    In other words, if you substitute the values y = -10 and x = -4 into the line's equation and do the arithmetic on the righthand side, do you end up with an equation that's true?

    Here's an example, using a different point.

    EG: Can we place the flamingo at the point (5, 15) ?

    At this point x = 5 and y = 15.

    y = -2/3*x - 12

    15 = (-2/3)(5) - 12

    15 = -3.83

    We did not end up with a true statement; hence, the point (5, 15) is not on the given line, and the answer in this example is "yes, we can place the flamingo at the point (5,15)".
    Last edited by mmm4444bot; 09-03-2011 at 03:32 PM. Reason: Fixed two math typos

  7. #7
    Thanks for the responses every one. Yes it is an online class thru UoP. In all of my other classes when I have had trouble all I had to do was send the instructor a message asking for help and I have always gotten the help I needed. In fact up to this point I have a very good experience with college, but with this course it is like someone stated; I am paying $1,200. to teach myself something I have no clue about. I have even spoken with my academic advisor and his answer was to ask the instructor to contact me. Her response to that was no, and to once again refer to the instuctors policy for help. I have been flitting around the internet for four weeks now looking for help and today totally in tears; I just happened to wonder if there was a message board somewhere for people like me to get some help.I thank everyone that tried to help me and I will be coming back here if I need more help. Wish me luck I have my mid term tomorrow and as long as I can keep my D so I can pass this class I will be happy.

  8. #8
    Elite Member mmm4444bot's Avatar
    Join Date
    Oct 2005
    Location
    Seattle
    Posts
    8,935
    Quote Originally Posted by Glnzangel View Post

    wonder if there was a message board somewhere for people like me to get some help
    I don't think so. People in your situation need a tutor sitting next to them.

    Bulletin-board systems are not set up to teach classroom material or to provide intense tutoring.

    If you have a specific question about some part of an exercise, we're happy to explain things. We do not have the resources to cover weeks of instruction.

    Complaints against the University of Phoenix (a for-profit institution operating as a wholly-owned subsidiary of some S&P 500 corporation called the Apollo Group) are many. If you research the lawsuits filed against the University of Phoenix, the story becomes worse.




    Do you understand my example with the point (5, 15) ?

  9. #9
    Actually I did do a lot of research and all I found was how good of a school they were.Where would I find the other stuff. As far as tutoring goes I kind of do not even see that helping. Yes your examples did help a lot. I am actually passing the class by the skin of my teeth because of people like you helping me by giving me examples that I can use to keep up with the formulas;as I said in an earlier post I do not want anyone to give me the answers. I really wanted to learn how to get the answers on my own, most of it I can do in my head; the problem comes in when I am asked to show my work. This coming weeks work seems to be something I do remember learning some where along the way. I am 41 years old and have been out of school for 22 years, so this is not coming to me very easily.So far I have passed every class with an A or a B, but I will be happy with a D in this one. I still have another algebra class to take next semester. I am not a stupid person but this class does not make me feel very smart. Like I said ealier Thank you so much for your help and for not making me feel worse about myself for not understanding all of this.

  10. #10
    Elite Member
    Join Date
    Feb 2004
    Location
    Ottawa, Ontario
    Posts
    16,645
    I'm just an imagination of your figment !

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •