What is the best estimate for the value of the expression

Graph the system: f(x)= 3/x-2; f(x)= 1/2x + 2

The focus of parabola is (-4, -5), and its directrix is y= -1. fill in the missing terms and signs in parabolas equation in standard form

Solve each quadratic equation by factoring and using the zero product property. x^2 + 18x = 9x