Question

P(-1,a) and Q(5,7) when joined forms diameter of a circle C(2,-3a).Evaluate possible values of a.



Please answer very urgent...​

Answer 1

Step-by-step explanation:

As C will be the mid point of P Nd Q so we will find value of A by mid point formulae

so C(2,-3a) = x1 +x2/2, y1 -y2/2

so 2 = -1+5/2, -3a =a+7/2

2=4/2, -3a=a+7/2

2=2, -3a×2= a+7

-6a-a=7

-7a=7

a= -1

hope it helps!!:))