AlgebraEasyLine through the origin
Algebra practice question
In the xy-plane, which of the following equations has a graph that passes through the origin?
- A. y = 5xCorrect
- B. y = 5x + 1
- C. y = 5
- D. x = 5
Answer: A. y = 5x
At x = 0, y = 5(0) = 0, so (0, 0) is on the line y = 5x.
Why the other answers are wrong
- B. y = 5x + 1
- At x = 0, y = 1, not 0.
- C. y = 5
- y = 5 never reaches y = 0.
- D. x = 5
- x = 5 never reaches x = 0.
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