Question 328961
x + 8Y = 5
8y=-x+5
y=-x/8+5/8 (red line)
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x = 2 - 8Y 
8y=-x+2
y=-x/8+2/8 
y=-x/8+1/4 (green line)
{{{ graph( 300, 200, -6, 5, -2, 2, -x/8 +5/8, -x/8 +1/4) }}} (graph 300x200 pixels, x from -6 to 5, y from -2 to 2, of TWO functions -x/8 +5/8 and -x/8 +1/4).