Mark the tick against the correct answer in the following:
If the points A(3, -2), B(k, 2) and C(8, 8) are collinear then the value of k is
To find: Area of ABC
Given: A(3,-2), B(k,2) and C(8,8)
The formula used:
We have, A(3,-2), B(k,2) and C(8,8)
Expanding along R1
⇒
⇒
⇒ -18 +2k - 16 + 8k -16 = 0
⇒ 10k -50 = 0
⇒ k = 5