AlgebraEasyLine with a given y-intercept
Algebra practice question
Which of the following is an equation of a line in the xy-plane with a y-intercept of 4?
- A. y = 2x + 4Correct
- B. y = 4x
- C. y = 4x − 2
- D. x = 4
Answer: A. y = 2x + 4
At x = 0, y = 4.
Why the other answers are wrong
- B. y = 4x
- At x = 0, y = 0.
- C. y = 4x − 2
- At x = 0, y = −2.
- D. x = 4
- A vertical line has no y-intercept.
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