Question

if the coordinates of A and B are (-3,a) and (1,a+4) respectively and the mid point of ab bar is (-1,1) then find the value of 'a'​

Answer 1

This is your answer mate hope it helps

Answer 2

Step-by-step explanation:

A=(-3,a) and B=(1,a+4)

mid point of ab bar is (-1,1)

midpoint = (x1+x2/2,y1+y2/2)

(-1,1)=(-3+1/2,a+a+4/2

(-1,1)=(-2/2,2a+4/2)

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

(-1,1)=(-1,a+2)

a+2=1

a=-1