Question

Find the value of x, if the points (-5,7),(x,5) and (0,2) are collinear * O 9 O-3 O 4 O 5 O Other:
​

Answer 1

Answer:

Step-by-step explanation:

so, x  

1

​

(y  

2

​

−y  

3

​

)+x  

2

​

(y  

3

​

−y  

1

​

)+x  

3

​

(y  

1

​

−y  

2

​

)=0

Take (-5,7) as (x  

1

​

,y  

1

​

), (x,5) as (x  

2

​

,y  

2

​

) and (0,2) as (x  

3

​

,y  

3

​

), we have

-5(5-2)+x(2-7)+0=0

⇒ -15-5x=0

⇒ -15=5x

⇒ x=-3

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