Question

An arch in the shape of the top half of an ellipse is 10 feet wide and 3 feet high at the center. Find the height of the arch 1 foot from the center.
by just look at the question I advise to first draw it. then use the Ellipse function to determine the height from there
I drew and got the formula of x^2 / 25 + y^2 / 9 =1. I'm not sure where to go from there; would I set up proportions?

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