SOLUTION: what is the missing number in this sequence ? (7,4), (4,1), (0,-3), (-5,-8), (9.5,__)

Algebra ->  Sequences-and-series -> SOLUTION: what is the missing number in this sequence ? (7,4), (4,1), (0,-3), (-5,-8), (9.5,__)      Log On


   

Question 1044646: what is the missing number in this sequence ?
(7,4), (4,1), (0,-3), (-5,-8), (9.5,__)
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
The slope among points will tell you something to use.

%28-3-4%29%2F%280-7%29=%28-7%29%2F%28-7%29=1

%28-8-1%29%2F%28-5-4%29=%28-9%29%2F%28-9%29=1

Now you know how the points are related, or you could try checking another combination of point pair...


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Slope is 1.
Notice one of the given points is vertical axis intercept.
The points will all be on y=x-3.