Question
Asked Oct 13, 2019
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How does one determine whether an ordered pair is a solution of a given equation?

Ex. 7x-8y=56; (0,56), (8,0)

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Expert Answer

Step 1

Given,

 

7x-8y 56 and the ordered pairs are (0, 56), (8,0)
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7x-8y 56 and the ordered pairs are (0, 56), (8,0)

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Step 2

Now

...
Substituting (x, y) = (0, 56) in 7x -8y 56, we get
7(0)-8(56) 0-448 =-448 56
The ordered pair (0,56) is not a solution of the equation 7x -8y= 56
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Substituting (x, y) = (0, 56) in 7x -8y 56, we get 7(0)-8(56) 0-448 =-448 56 The ordered pair (0,56) is not a solution of the equation 7x -8y= 56

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Tagged in

Math

Algebra

Equations and In-equations