Question

If (a,2), (-3,4), (7,1) are collinear points, then how much the value of 'a'? ​

Answer 1

Step-by-step explanation:

by using slope form

m=y2-y1/x2-x1=4-2/-3-a

m=2/-3-a

m2=1-4/7-(-3)=-3/10

2/-3-a=-3/10

20=9+a

20=9+a

11=a is the answer of this question