Question

show that the points (1,1) and(2,2) and (3,3) are collinear​

Answer 1

hey mate here is your answer
if they are collinear then the area of triangle is = 0
if not then not equal to 0

Answer 2

Answer:

The given points A(1,1), B(2,2) and C(3,3) are collinear.

Step-by-step explanation:

The given points are A(1,1), B(2,2) and C(3,3). These points are collinear if slope of AB and BC are same.

Slope formula:

$m=\frac{y_2-y_1}{x_2-x_1}$

Slope of AB is

$m_1=\frac{2-1}{2-1}=1$

Slope of BC is

$m_2=\frac{3-2}{3-2}=1$

Since, slope of AB and BC are same, therefore the given points A(1,1), B(2,2) and C(3,3) are collinear.