AmberAlexis
AmberAlexis AmberAlexis
  • 25-05-2016
  • Mathematics
contestada

Which equations are equations for the line shown?

Choose all answers that are correct.

Which equations are equations for the line shown Choose all answers that are correct class=
Which equations are equations for the line shown Choose all answers that are correct class=

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Tareki
Tareki Tareki
  • 26-05-2016
the line passes by the points (2,-3) , (-2,5)
so the equation of a line passes by 2 points is (y-y1)/(x-x1) = slope 
slope = (y2-y1)/ (x2-x1) 
= (5-(-3)) / ( -2-2) 
= 8/-4 
= -2 
then subs. in the 1st equation of the line 
(y-(-3)) / ( x-2) =-2
so,, (y+3) = -2(x -2) 
so the answer is the 1st one 
to make sure ur equation is right subs in the equation by the point (0,1) 
if R.H.S = L.H.S 
then ur equation is right 
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