Question

An equation in the system is y = x + 1. What is the other equation in the system if the solution is only at (0, 1)?

A.
x − y = 1
B.
2x + 2y = 4
C.
x + y = 0
D.
x + 2y = 2

Answer 1

D

Explanation:

Answer 2

A. 0 - 1 = 1 (false)

B. 2(0) + 2(1) = 4 (false)

C. 0 + 1 = 0 (false)

D. 0 + 2(1) = 2 (correct)

The answer is D