Question

If the points A (x,2), B (-3,-4), C (7,-5) are collinear then find the value of x.

Answer 1

from the given co - ordinates of X and Y frame an equation, this equation would stand for all three values since they are collinear

Answer 2

Answer

Step-by-step explanation:

Take x1 as x,x2 as -3,x3 as 7

Take y1 as 2,y2 as -4,y3 as-5

Pure these values in the formula-

1/2[x1(y2-y3)+x2(y3-y1)+x3(y1-y2)

And u will get the ans.....

Hope it helps u...