Try another version of this question Get help: Box 1: Enter your answer as an equation. Example: y=3x^2+1, 2+x+y=3
Write the equation of the ellipse that has a center at `(4, -1)`, a focus at `(7, -1)`, and a vertex at `(8, -1)`.
Be sure your variables match those in the question `(x-4)^2/16 + (y+1)^2/7 = 1`