Determine vector, parametric, and if possible, symmetric equations of the line through A(-3, 5, -5) and B(9, 2, -1).?

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answers:
ted s say: < x , y , z > = < - 3 , 5 , - 5 > + t < 12 , - 3 , 4 > { vector } = < - 3 + 12 t , 5 - 3t , -5 + 4 t > { parametric } ====> [ x + 3 ] / 12 = [ y - 5 ] / - 3 = [ z + 5 ] / 4 {= t ; symmetric }
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ted s say: < x , y , z > = < - 3 , 5 , - 5 > + t < 12 , - 3 , 4 > { vector } = < - 3 + 12 t , 5 - 3t , -5 + 4 t > { parametric } ====> [ x + 3 ] / 12 = [ y - 5 ] / - 3 = [ z + 5 ] / 4 {= t ; symmetric }
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