Question 516779
-x +2y = 7
2y = x + 7
y = x/2 + 7/2 = (1/2)*x + 7/2
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Recall the slope-intercept form is:  y = mx + b
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m = slope = 1/2
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b = y-intercept:  (0, 7/2)
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Set y=0 and find the x-intercept.
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0 = (1/2)*x + 7/2
x = -7
(-7,0)
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With two points you can draw the line.
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{{{ graph(500,500,-10,10,-10,10,x/2+7/2) }}}