Lesson 7

Are You Ready?

1. Solve each of the following quadratic equations using factoring.
   
   
   1. x2 + 5x + 4 = 0 Answer
      
      
   2. 2x2 + 4x − 30 = 0 Answer
      
      
   3. y2 − 16 = 0 Answer
      
      
   4. −5y2 + 125 = 0 Answer
      
      
   5. 2x2 + 5x − 3 = 0 Answer
      
      
2. Using your calculator, graph and find the zeros of the following quadratic functions.
   
   
   1. f(x) = x2 − x − 6 Answer
      
      
   2. f(x) = 3x2 + x − 2 Answer
      
      
   3. f(x) = x2 + 6x + 9 Answer

If you successfully completed the Are You Ready? questions, move on to the Discover section of the lesson.

If you experienced difficulties with the questions, use the resources in the Refresher section to review the concepts before continuing through the lesson.