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Posted by on Monday, August 23, 2010 at 12:35am.

find the slope if any:
x+8y=16
x+0=16
x=16


0 +8y=16
8y=16
8y/8=16/8
y=2

this is the part that loses me:
0-2=-2
16-0=16 -2/16=-1/8 is this correct? If not can you help me?

  • math - , Monday, August 23, 2010 at 1:39am

    Put the equations into slope-intercept form:
    y = mx + b

    m = slope
    b = y intercept

    For your first problem...
    subtract x from both sides
    x + 8y = 16
    8y = -x + 16
    divide both sides by 8
    y = -(1/8)x + 2
    So, the slope is -(1/8)
    I am not sure why you set y to 0 in your solution. That will give you the x intercept, but not the slope.

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