Question

Plz solve the problem I will make the brainliest mark​

Answer 1

given

a=(2,-1)

b=(a,7)

C=(-3,a)

since point are equidistant

so

mid point of ab = mid point of bc

according to question

mid point of ab=(a+2/2,-1+7/2)

mid point of bc=(a-3/2,7-a/2)

now

7-a/2=3

a=1

hope it helps you

Answer 2

Answer:

Step-by-step explanation:

This answer may be correct:

By section formula,

(2,-1)=(-3+a/2,a+7/2)

2 =-3+a/2

-3+a=4

a=7