Section+4.9+Graph+and+Solve+Quadratic+Inequalitites

Chapter 4.9 Graph and Solve quadratic inequalities =//__Solving __//=

For more ways to solve quadratic inequalities :media type="youtube" key="LQQFZLKWa4w?feature=player_detailpage" height="360" width="640"
= = =__//Graphing //__= ====To graph a quadratic inequality it would be a good idea to start out by making a table to figure out for each X value, what your Y value is.====

Using your equation, take a point to test it out. Use any point to see which side of the line to shade.


media type="youtube" key="Lrn_efFnZY4?feature=player_detailpage" height="360" width="640"  Assessment: For questions 1 and 2 draw a graph on your paper, then graph the points be sure to shade the proper area.

1) 3x² + 6x - 4 > y = = 2) 0.5x² + 2x – 1 ≤ y

For questions 3 and 4, solve. . 3) x² + 2x – 15 < 0 a) x= -1 or x= 6 b) x= -3 or x= -5 c) x= -3 or x= 5 d) x= 354 or x= -123