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ArenasalBC2100 ArenasalBC2100
  • 08-02-2017
  • Mathematics
Answered

A line with a slope of -1 passes through points at (2,3) and (5,y). What is the value of "y"??

Verified Answer :

apologiabiology
apologiabiology apologiabiology
  • 08-02-2017

line passing through (x1,y1) and (x2,y2) is (y2-y1)/(x2-x1)

slope is -1 and points are (2,3) and (5,y)

slope=(y-3)/(5-3)=-1
(y-3)/2=-1
times both sides by 2
y-3=-2
add 3 both sides
y=1


y=1

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