Indicate in standard form the equation of the line passing through the given points.

B(0, 0), C(4, -4)

Question

Indicate in standard form the equation of the line passing through the given points.

B(0, 0), C(4, -4)

anonymous · Answer

x+y=0

anonymous · Answer

but that cant be the answer

anonymous · Answer

Never mind that is the correct answer but could i get how u got that

anonymous · Answer

calculate the slope:y-y0/x-x0
put in y=mx+c where m is slope.and if my answer is not right maybe its because of c i assumed it to be 0.

texaschic101 · Answer

m = (y2 - y1)/(x2 - x1)....set 1 (0,0)...set 2 (4,-4)
m = (-4 - 0)/ (4 - 0)
m = -4/4 = -1

y = mx + b ....using points (4,-4)
-4 = -1(4) + b
-4 = -4 + b
-4 + 4 = b
0 = b

y = -1x + 0

ax + by = c
-x + y = 0

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