Which is a solution of the equation?

2x + y = 5

2x + y = 5

5

(2, –1)

(1, 2)

(3, –1)

(2, –1)

(1, 2)

(3, –1)

Which is a solution of the equation?

2x + y = 5

2x + y = 5

5

(2, –1)

(1, 2)

(3, –1)

(2, –1)

(1, 2)

(3, –1)

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Rochester, NY

Ron,

An ordered pair is always (x,y) for a point on a graph. This is why you will want to plug in the fist number in the coordinate ( , ) for your X value and the second number in the coordinate ( , ) as your Y value. Using the solutions they gave you, calculate your answers to see if it is equal to 5.

Good luck!

Middletown, CT

Hi Ron;

Welcome to Wyzant!!!

2x + y = 5

Let's try the first set of coordinates, (2, –1)...

2(2)-1=5

4-1=5

3=5---------Does NOT work.

Second; (1, 2)

2(1)+2=5

2+2=5

4=5------Does NOT work.

Let's try the third set of coordinates, (3, –1)...

2(3)-1=5

6-1=5

5=5-------ANSWER!!!!

Mark D.

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John P.

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