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Adriver from the university of florida women’s swimming and diving team is competing in the in ncaa zone b championships

To solve the system of equations below, grace isolated the variable y in the first equation and then substituted into the second equation. what was the resulting equation? 3y=12x x^2/4+y^2/9=1

Last one and the bottom answer choice is y=(x-4)^2+1 you guys!