the points (-1,q) and (r,2) lie on the lien y=2-x find the value of q and r
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since the given points lies on the given line, so it satisfies the given equation.
according to question,
for {-1,q},
y=q, x=-1
y=2-x can be written as
q=2-{-1}
q=3
similarly,
for point {r,2}
x=r,y=2
y=2-x can be written as
2=2-r
r=0
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