Question

Check whether the points A(1,5), B(2,3)and C(-2,1) are collinear. ​

Answer 1

Answer:

k=6

Step-by-step explanation:

We are given that the points A(2, 3), B(5, k) and C(6, 7) are collinear

So, They lie in the same lineFirst find the equation line using two point slope form Substitute the values in the formula

:Since   A(2, 3), B(5, k) and C(6, 7) are collinear

So, Point B must satisfy the line equation

So, Hence the value of k is6