Erfana Beevee Binte Hassan Shariff's answer to chifuyu_.'s Secondary 3 E Maths Singapore question.

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Erfana Beevee Binte Hassan Shariff
Erfana Beevee Binte Hassan Shariff's answer
275 answers (Tutor Details)
1st
Collinear means all points lie on the same line. So, gradient of any two points will be the same. Equate using gradient to find z.