Some people ask girls to go to a dance just for that dance and don't want a relationship. How do you let her know that you want a relationship after the dance?
Given a parabolic arch with a base of 16 and a height of 18 find the width 10 ft up.
I found that the equation of the parabola is x^2 = -32/9y but I don't know how to find the width 10 ft up.