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lauszczepa
lauszczepa lauszczepa
  • 04-08-2016
  • Mathematics
Answered

choose the equation below that represents the line passing through the point (7 , −2) with a slope of -3.


y-2= -3 (x+7)

y+7= -3 (x-2)

y+2= -3 (x-7)

y-7= -3 (x+2)

Verified Answer :

Ckaranja
Ckaranja Ckaranja
  • 07-08-2016

From general equation of a line;
y=mx+c
y=-3x+c
Replacing for x and y using point (7, -2)
-2=-3(7)+c
-2=-21+c
-2+21=c
c=19
y=-3x+19

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