Algebra practice question

Answer: A. 2x − y = 6

Check (3, 0): 6 − 0 = 6 ✓. Check (0, −6): 0 + 6 = 6 ✓.

Why the other answers are wrong

B. x − 2y = 3

x − 2y = 3 has y-intercept −1.5.

C. 2x + y = 6

2x + y = 6 has y-intercept 6, not −6.

D. x + 2y = −6

x + 2y = −6 has x-intercept −6.

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