2 years ago

The ordered pairs (0,-5) (-1,-7) and (1,n) are solutions of the same linear equation. find n

1 answer:

5 0

The three points are on the same line, so the slopes formed by any of the two points stay the same
[-7-(-5)]/(-1-0)=[n-(-5)/(1-0)
(n+5)=2
n=-3

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