Lesson 5

Are You Ready?

Complete these questions. If you experience difficulty and need help, visit Refresher or contact your teacher.

1. What is a system of equations? Give an example. Answer
   
   
2. What is the significance of the points of intersection of the graph of a system of equations? Answer
   
   
3.  
   1. Solve the following linear system using a graphical method.
      
      x + y = 7
      2x − y = 5
      
      Answer
      
      
   2. Verify your solutions. Answer
      
      
4. Given the information for each function, determine the equation of a
   
   
   1. line that passes through the points (0, 3) and (4, 6) Answer
      
      
   2. parabola with vertex (2, 10) that passes through the point (−3, −15) Answer