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    moondown's Avatar
    moondown Posts: 1, Reputation: 1
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    #1

    Oct 3, 2011, 07:18 AM
    Find the slope and y-intercept of the line represented be each of the following.
    Question#1
    Y-3x+5
    Kahani Punjab's Avatar
    Kahani Punjab Posts: 510, Reputation: 203
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    #2

    Oct 3, 2011, 07:35 AM
    Moondown
    y-3x+5 is not a line, dear.
    I think you want to say
    y-3x+5 = 0

    If it is so, y = 3x - 5 ------ (I)
    If m is the slope,
    y= mx + c-------------------(II)
    Compare I and II, we get -
    m = 3, so slope is 3
    Kahani Punjab's Avatar
    Kahani Punjab Posts: 510, Reputation: 203
    Senior Member
    		  
    #3

    Oct 3, 2011, 07:40 AM
    To find the value of y-intercept, remember, it is the point, where x=0
    So, fill x=0 in y-3x+5 = 0
    and y-3(0)+5=0
    y+5=0
    y = -5
    or, y+5=0 is the y-intercept.
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