Don't know how I could go solve this question: Determine the coordinates of the point where the plane with equation r = (4,1,6) + s[11,-1,3] + t[-7,2,-2] crosses the Z-axis. The answer in the text says0,0,5)
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Originally Posted by square Don't know how I could go solve this question: Determine the coordinates of the point where the plane with equation r = (4,1,6) + s[11,-1,3] + t[-7,2,-2] crosses the Z-axis. The answer in the text says0,0,5) Hi A point M(x,y,z) in on the plane iff there exist (s,t) such that x = 4 + 11s - 7t y = 1 - s + 2t z = 6 + 3s - 2t M is on the z axis iff x = 0 and y = 0 This leads to solve a linear system of 2 equations ans 2 unknowns (s and t) Then substitute in z
just got the answer, thanks a lot.
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