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Math Help - equation of line

  1. #1
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    equation of line

    If some would please show me how to do this step by step to include creating graphs that would be most helpful thanks



    Consider first a linear equation of the form y = mx + b.
    1. Choose values of m and b, then plot the initial equation.
    2. Change m to make a different plot.
    3. Change b (but not m) in the original equation and plot the result.
    4. Finally, use the new values of m and b to create a plot. Place all four on the same graph.

    Now choose a linear inequality of the form y < mx + b or y > mx + b.
    1. Choose values of m and b, then plot the initial equation.
    2. Change m to make a different plot.
    3. Change b (but not m) in the original equation, and plot the result.
    4. Use the new values of m and b to create a plot.
    5. Place all four on the same second graph.
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  2. #2
    Bar0n janvdl's Avatar
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    Quote Originally Posted by sk8rgyrl View Post
    If some would please show me how to do this step by step to include creating graphs that would be most helpful thanks



    Consider first a linear equation of the form y = mx + b.
    1. Choose values of m and b, then plot the initial equation.
    2. Change m to make a different plot.
    3. Change b (but not m) in the original equation and plot the result.
    4. Finally, use the new values of m and b to create a plot. Place all four on the same graph.

    Now choose a linear inequality of the form y < mx + b or y > mx + b.
    1. Choose values of m and b, then plot the initial equation.
    2. Change m to make a different plot.
    3. Change b (but not m) in the original equation, and plot the result.
    4. Use the new values of m and b to create a plot.
    5. Place all four on the same second graph.
    Well I'm sure you know how to draw a graph. Can you show us anything you've done so far? What values have you used?
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  3. #3
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    homework help

    All I want is help with my pre-calculus class, simply because I dont know what I'm doing. I wanted someone to show me how to do the problem step by step, but its ok i'll get help elsewhere. thanks
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  4. #4
    Bar0n janvdl's Avatar
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    Quote Originally Posted by sk8rgyrl View Post
    All I want is help with my pre-calculus class, simply because I dont know what I'm doing. I wanted someone to show me how to do the problem step by step, but its ok i'll get help elsewhere. thanks
    I am sorry to hear that my question sparked such a response from you, however I cannot see anything wrong in asking you to show me a bit what you've done. I believe if you are eager to LEARN, you would be interested to see where you went wrong with your workings.
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  5. #5
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    Its ok, I don't have any work completed to show you. anyway thanks for your response and concern.
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  6. #6
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    Quote Originally Posted by sk8rgyrl View Post
    Its ok, I don't have any work completed to show you. anyway thanks for your response and concern.
    Are you saying that you haven't even chosen a value for m and b ....?! This is not a forum for doing everything for you. You must have done something that can be built upon here ....?
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  7. #7
    is up to his old tricks again! Jhevon's Avatar
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    Quote Originally Posted by sk8rgyrl View Post
    If some would please show me how to do this step by step to include creating graphs that would be most helpful thanks



    Consider first a linear equation of the form y = mx + b.
    1. Choose values of m and b, then plot the initial equation.
    2. Change m to make a different plot.
    3. Change b (but not m) in the original equation and plot the result.
    4. Finally, use the new values of m and b to create a plot. Place all four on the same graph.

    Now choose a linear inequality of the form y < mx + b or y > mx + b.
    1. Choose values of m and b, then plot the initial equation.
    2. Change m to make a different plot.
    3. Change b (but not m) in the original equation, and plot the result.
    4. Use the new values of m and b to create a plot.
    5. Place all four on the same second graph.
    as the others said. we cannot do everything for you, since this is an assignment and will therefore likely affect your grade.

    number 1 is easy in both equations. just pick two random numbers. make them small to avoid any hard calculations that may arise. just out of the blue, how about picking m = 1 and b = 2. or m = -1, b = 3, or m = 3, b = 1, or ... anything... the problem leaves the numbers up to you.

    now, as for plotting, see the following links, tell me if they help:

    http://www.mathhelpforum.com/math-he...ork-again.html

    http://www.mathhelpforum.com/math-he...raph-help.html

    http://www.mathhelpforum.com/math-he...d-i-graph.html

    http://www.mathhelpforum.com/math-he...-graphing.html

    http://www.mathhelpforum.com/math-he...hing-help.html (posts #6 and #8)

    http://www.mathhelpforum.com/math-he...n-x-y-5-a.html

    http://www.mathhelpforum.com/math-he...aphically.html (posts #4 and #6)

    after reading those, you should know how to plot graphs. if not, don't worry about it, come back with SPECIFIC questions as to what you don't understand. once you can plot, the questions should be no problem, because besides plotting, all you have to do is follow instructions that have nothing to do with math.

    good luck
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  8. #8
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    Thumbs up Awesome

    Thanks guys for your help. Jhevon those links for the graphs helped out a great deal. you guys are the best.
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