Decide 2

Decide whether points A[-2, -5], B[4, 3] and C[16, -1] lie on the same line

Correct answer:

x =  0

Step-by-step explanation:

u=(4(2),3(5))=(6,8) v=(16(2),1(5))=(18,4)  s=u v=uvcosα  cosα=c  c=6 18+8 462+82 182+420.7593  c0  x=0



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Ziacka
don't lie on same line

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