If a mid point of (a,b) and (12,4) is (9,8). What is a and b?

Question

Show how u got it

Answer 1

You just have to think through this.

12, the value for x in the second set of coordinates, is three greater than nine. Three less than nine is six.

4, the value for y in the second set of coordinates, is 4 less than eight. Four greater than eight is twelve.

(a,b)=(6,12)

Answer 2

a = 9 - (12 - 9) = 6

b = 8 - (4 - 8) = 12

This is not a geography question.

Answer 3

8 is half way between 4 and b. What is b?

9 is half way between 12 and a. What is a?

Answer 4

using midpoint formula:-

9=(a+12)/2 , 8=(4+b)/2

a+12=18 , 4+b=16

a=6, b=12