A3.8

solve quadratic equations that have real roots, using a variety of methods (i.e., factoring, using the quadratic formula, graphing) (Sample problem: Solve $x^2+10x+16=0$ by factoring, and verify algebraically. Solve $x^2+x-4=0$ using the quadratic formula, and verify graphically using technology. Solve $-4.9t^2+50t+1.5=0$ by graphing $h=-4.9t^2+50t+1.5$ using technology.).