Question 515553
The line must pass through:  (0,0) and (-1/8, 1/13).
.
m = slope = (0-(1/13)) / (0-(-1/8))
m = -8/13
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y = mx +b
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y = -8/13x + b
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Use one of the points you have to intersect to find 'b'
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1/13 = -8/13(-1/8) + b
1/13 = 8/104 + b
1/13 - 8/104 = b
1/13 - 1/13 = b
b = 0
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y = -8/13x
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8/13x + y = 0
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8x +13y = 0
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{{{ graph(500,500,-10,10,-10,10,-8/13*x) }}}