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Pretest: Systems of Equations and Inequalities14An equation in the system is y=x+ 1. What is the other equation in the system if the solution is only at (0, 1)?

User Acn
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1 Answer

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Given

The equation is given y=x+ 1.

Step-by-step explanation

To determine the other equation in the option which has same coordinate as the given equation that is (0, 1).

Check the options,

a. x-y=1.

Substitute the points and check the equation .

0-1 is not equal to 1.

The equation is not satisfied.

b. 2x+ 2y=4.

Substitute the points and check the equation.

2(0)+ 2(1) =2

2 is not equal to 4.

The equation is not satisfied.

c. x+ y=0

Substitute the points and check the equation.

(0)+ (1) =1

1 is not equal to 0.

The equation is not satisfied.

d. x+2y=2.

Substitute the points and check the equation.

(0)+ 2(1) =2

2 is equal to 2.

The equation is satisfied.

Answer

Hence the correct option is d.

User Wroscoe
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