The center of the inscribed circle of ΔABC is point , and the center of the circumscribed circle of ΔABC is point

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

Solve each quadratic equation by factoring and using the zero product property. 10x + 6 = -2x^2 -2

Find the domain and range of the following function f(x) = 51x - 21+ 4