Emily plans to use the quadratic formula, while Juan is considering using the graphing method to find exact solutions of 3x2 – 8x = 20. Using complete sentences, explain who has chosen the better method and why.

Question

anonymous · Answer

Emily has chosen the better method because:
- The quadratic formula gives better accurate answers, while the graphing method only gives approximate answers. 
- Good results from graphing method depends on the accuracy of the graph. 
Graphing a parabola with accuracy takes a lot of time.