One third is a rational number....since it can be written in p/q form(1/3)
Let us assume then that the center is the origin. If the major axis is 18, then a = 9 and a^2=81. If the minor axis is 16, then b = 8 and b^2=64. Now you can write the equation. Remember that this ellipse is vertical and so a^2 goes under y^2
She gave away 8 apples because 13 minus 5 is 8
