SOLUTION: Graph a line through the origin that is parallel to the graph of x+y=10

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Question 158778This question is from textbook Algebra 2
: Graph a line through the origin that is parallel to the graph of x+y=10 This question is from textbook Algebra 2

Answer by Alan3354(69443) About Me  (Show Source):
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Graph a line through the origin that is parallel to the graph of x+y=10
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Put it into slope-intercept form: y=mx+b
x+y=10
y = -x + 10
So the slope m = -1
Parallel lines have the same slope.
Use the slope-intercept form again:
y-y1 = m*(x-x1)
y = -x
That's it.