If the points (-8, r) and (-6, 7) lie on a line with slope -2 , the coordinate r is 11 .
In the question ,
it is given that ,
the points (-8 , r) and (-6 , 7) lie on the line and
slope of line is -2 ,
the slope of the line passing through the points (a , b) and (c , d) is calculated using the formula ,
slope = (d - b)/(c - a)
Substituting given values in slope formula ,
we get ,
slope = (7 - r)/(-6 -(-8))
-2 = (7 - r)/(-6 -(-8))
-2 = (7 - r)/(-6 + 8)
-2 = (7 - r)/2
7 - r = -4
r = 7 + 4
r = 11
Therefore , If the points (-8, r) and (-6, 7) lie on a line with slope -2 , the coordinate r is 11 .
The given question is incomplete , the complete question is
The points (-8, r) and (-6, 7) lie on a line with slope -2 . Find the missing coordinate r ?
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