Consider a square whose size varies. Let s represent the side length of the square (in cm) and let P represent the perimeter of the square (in cm). Write a formula that expresses P in terms of s.        Consider the equation 18=4s. Solve this equation for s.   What does this solution represent? Select all that apply. The square's current side length (in cm). The perimeter (in cm) of a square whose side length is 4.5 cm. The side length (in cm) of a square whose perimeter is 18 cm. Write a formula that expresses s in terms of P.      Evaluate your formula from part (c) for P=18.

Algebra: Structure And Method, Book 1
(REV)00th Edition
ISBN:9780395977224
Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Publisher:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Chapter12: Quadratic Functions
Section12.7: Direct And Inverse Variation Involving Squares
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Consider a square whose size varies. Let s represent the side length of the square (in cm) and let P represent the perimeter of the square (in cm).

  1. Write a formula that expresses P in terms of s.

          

  2. Consider the equation 18=4s.

    1. Solve this equation for s.

       

    2. What does this solution represent? Select all that apply.

      • The square's current side length (in cm).
      • The perimeter (in cm) of a square whose side length is 4.5 cm.
      • The side length (in cm) of a square whose perimeter is 18 cm.
  3. Write a formula that expresses s in terms of P.

        

  4. Evaluate your formula from part (c) for P=18.

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