Hi, 

*Note: An 'ordered pair is in the format of (x,y)

ordered pair (1, 7)

x = 1 and y = 7

Determine whether this ordered pair is a solution of the equation:  

y= 2x+5

7 = 2*2 + 5

Yes it is!



 

Answer by solver91311(24713)   (Show Source): You can put this solution on YOUR website!
 





The reason they call it an "ordered pair" is because the two elements are always in the same order, namely .  That means that the first value is ALWAYS the independent variable value, and the second value is ALWAYS the dependent variable value.  So replace the  in your equation with the first value of the ordered pair, then replace the  in your equation with the second value in your ordered pair.  Do the indicated arithmetic.  If you end up with a true statement, then the point is an element of the solution set of the equation.  If you end up with a false statement, then the point is NOT an element of the solution set of the equation.





John



My calculator said it, I believe it, that settles it



 

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