QUADRATIC EQUATIONS
ax2 + bx + c = 0
Hey students! If you are having trouble understanding how to solve quadratic equations, you've come to the right place. On these lesson pages you'll find links to help you learn the different ways to solve quadratic equations.
1) Solve by graphing the related function. Your graph should be a parabola and your solutions are the x-intercepts of the parabola. Remember that the parabola opens up when a is positive and down when a is negative. Sometimes it is hard to determine exactly where the x-intercepts are, making this the least reliable method for solving quadratic equations. It still give you a picture of what the function looks like. A graphing calculator would help! Click here to see an example problem. Then try the practice quiz. Keep taking quizzes until you get all five problems correct. If you are still having trouble, go to PurpleMath or CoolMath for more help. Click on lesson 2 for the next method of solving quadratic equations.
If you need a graphing calculator, go to the Texas Instrument website for details.