Pass through point m( 1, 3/2)

∴ 1/a？ +9/4b？ = 1

And present eccentricity e=c/a= 1/2.

Answer? =b？ +c？

Solution: a? =4，b？ =3，c？ = 1

That is, the elliptic equation is x? /4+y？ /3= 1