1. Lesson 7

1.1. Explore

Mathematics 20-2 M5 Lesson 7

Module 5: Radicals

 
Explore
 

This image shows a coiled book with the solution to a problem written on it.

© Yevheniy Kotsaryev/32788027/Fotolia

When solving problems in math, the key to success lies in translating the word problems into mathematical symbols. Some problems give both the equation and the values needed to solve the equation.


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Read “Example 2: Modelling a situation with a radical equation” on pages 219 to 221 of your textbook. In this example, the equation is given. Ramesh and Nicola used two different processes and still calculated the same answer.

Share 1
 

With another student or appropriate partner, discuss the differences between Ramesh’s and Nicola’s solutions.

  1. Which method would you choose?

  2. Both Ramesh and Nicola began by stating the restrictions on the variables. In Lesson 6 you looked at the importance of stating restrictions on variables. Why is the formula only defined if L is greater than or equal to zero?
course folder

 

Place a copy of your answers in your course folder.