m = (y2 -y1)/(x2 - x1); m = (11 +5)/(3 + 9) = 16/12 = 4/3
la recta: y - y1 = m(x - x1)
y + 5 = 4/3(x + 9);
3y + 15 = 4x + 36
4x - 3y -21 = 0 la respuesta es la c
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m = (y2 -y1)/(x2 - x1); m = (11 +5)/(3 + 9) = 16/12 = 4/3
la recta: y - y1 = m(x - x1)
y + 5 = 4/3(x + 9);
3y + 15 = 4x + 36
4x - 3y -21 = 0 la respuesta es la c