find the midpoint of the line segment joint the points P1(1.4,3.2) and P2(-.4,1.7)

To find the midpoint of the x coordinate......add the x values and divide by 2

Then....do the same with the y coordinates....so you should have....

( [1/4 + -.4]/ 2 , [3.2 +1.7]/ 2 ) =

([1.4 - .4] / 2 , [3.2 + 1.7] / 2 ) =

( 1/2  ,  4.9/2 ) =

(1/2 , 2.45)