Question

determine whether the points are collinear. r(0 3) d(2 1) s(3 -1)​

Answer 1

Answer:

Formulas that to be used are :‑ Ex: Prove that A(1, ‑1) , B(5,2) , C(9,5) are co‑linear. Solution: Given: A(1, ‑1) (x1,y1) B(5,2) (x2, y2) C(9,5) (x3, y3) Method 1 : AC=AB+BC (here use distance formula, and then if it comes LHS=RHS) hence we proved Method 2: Use Area of triangle formula (here we should take LHS as '0') 0=1/2[x1(y2‑y3) + x2(y3‑y1) + x3(y1‑y2)] (Do until ...

Hope it is okay.